Basically all footprints here are valid and accurate. Please use the replace geometry tool (ctrl+shift+g) or conflation plugin to preserve history rather than deleting features and re drawing them. They weren't here for long this time around but keep it in mind in future.
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Published using OSMCha: https://osmcha.org/changesets/164186113

Overall a good changeset. I flagged footprints you added which envelope more than one building. Use shadows and roof colour to determine when one ends and the next begins. Check Changeset: 164186287 for my partial resolution. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164181096

Hold alt to prevent your cursor from snapping to data. You joined buildings to highways here. Remember to square footprints where appropriate. This counts as an appropriate occasion. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164181405

One building per footprint. The footprint I flagged envelopes multiple buildings with a round footprint. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164175609

The shared nodes should have been disconected first by selecting them then pressing d
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Published using OSMCha: https://osmcha.org/changesets/164179960

Looks like you squared some existing buildings here which is a step in the right direction. Generally these footprints are oversized; their corners should be modified first ro reflect their actual shape and then the corners should be squared.
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Published using OSMCha: https://osmcha.org/changesets/164179960

I resolved the issues. Check the task changesets to see my edits.
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#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164177985

All of the footprints you added here are valid; those which you squared and rounded are accurate. Please modify features witch are likely to overlapp with your mapping like the residential area before you beging adding data. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164177985

Some of the square footprints you mapped in this area represent barriers and not buildings watchout for secondary shadows to identify barriers. I flagged some examples on this.
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Published using OSMCha: https://osmcha.org/changesets/164174629

Some of the building footprints you added hera envelope multiple buildings. Use shadows to help tell one building from another.

The vast majority of round footprints are valid and accurate. The square footprints in the West are not accurate. The northern one should be round and the other is oversized and envelopes what could be two buildings. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164174041

Check Changeset: 164135873 to see how I mapped this task.
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Published using OSMCha: https://osmcha.org/changesets/164046579

The orientation of the building you modified in the SW could be more accurate. Zoom out to get better shape and orientation information.
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Published using OSMCha: https://osmcha.org/changesets/164046579

This footprint could represent a building and you correctly moved a highway to avoid causing an overlap.
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Published using OSMCha: https://osmcha.org/changesets/164046798

Overall a good changeset. You improved the geometry of virtually all of the buildings modified here. You appropriately moved higways to prevent building highway overlapps. All buildings you modified and added are valid. Please press ? in ID to check out the editing shortcuts in ID for scaling and nudging feartues. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/163261090

Please modify footprints if you can tell which building they represent as you did in the north and south of this changeset rather than deleting and redrawing the from scratch like you did in the middle. Disconnect shared nodes with (d) in ID.
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Published using OSMCha: https://osmcha.org/changesets/163667599

The northern footprint outlines what appears to be a building under construction so it is valid and you squared it appropriately. It's fairly accurate but could be a little bit smaller. You can scale features by using (shift + +/-) press ? to see ID editors shortcuts. More like this in the future. The southern footprint does not represent a building I deleted it.
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Published using OSMCha: https://osmcha.org/changesets/164132165

These footprints do not represent buildings in the imagery the one in the west possibly outlines a yurt which should not be mapped. I recommend searching for tasks by least recently updated to see if you can find one with fewer mapped buildings that you may find easier to identify to get you started. Also in this area use bing as an interpretation aid switch between imageries using (Ctrl.+B). Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164132244

You correctly identified that the building to the north is L shaped, well done. Please remember to square (q) your footprints going forward.
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Published using OSMCha: https://osmcha.org/changesets/164091832

The building I flagged is in fact L shaped. Please modify residential areas to prevent them from overlapping with footprints.
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Published using OSMCha: https://osmcha.org/changesets/164093496