Unable to answer "Is drinking water available here? If so, what is its source?" – Água (Drinking Water) – node/7001889185 via StreetComplete 57.1:

This is a river, not a drinkable water spot
Eso es un río, no un punto de agua potable

Unable to answer "Do these steps have a handrail?" – Steps – way/237887693 via StreetComplete 57.1:

No steps
No hay escalera

This is now a car road

via StreetComplete 57.2

Attached photo(s):
https://westnordost.de/p/210298.jpg

This is now a road accessible to cars (two lanes and sidewalks on both sides)

via StreetComplete 57.2

Attached photo(s):
https://westnordost.de/p/210297.jpg

"The pass is 200m away from there, as indicated by another (correct) node "
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2024-03-26T20:04:01Z
POI name: Paso de Santa Rosa
POI types: tourism-viewpoint
#organicmaps android

"I contacted the phone number and I was told that the hostel closed some years ago"
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2024-10-01T00:16:33Z
POI name: Flora's Hostal
POI types: internet_access-wlan tourism-hostel
#organicmaps android

In context of overlay "Places" – node/6786806385 via StreetComplete 57.4:

Nothing there

Unable to answer "Is this still here?" – Petrocomercial Amazonas (Gas Station) – node/1352070431 via StreetComplete 58.1:

Duplicate

Unable to answer "Where is this fire hydrant located?" – Water Utility Manhole – node/9718403297 via StreetComplete 58.2:

Está en la esquina

Attached photo(s):
https://westnordost.de/p/228396.jpg