Vytopna — is it a mistake?

Looks like a duplicate of node/1272064729 , which is at Václavské náměstí, not here.

Toilets are abandoned?
Today they were closed, no opening hours information.

If not, then maybe it is better to split them to 2 because they have separate entrances.

Check building number, it looks like 142 is wrong.

Уточнить номер дома; если тут Чайхана, то возможно это дом № 23

Сколько этажей у здания? Это жилой дом или какая-то техническая постройка?

Это два здания или одно?

Детская и спортивная площадки под мостом.

An asphalt bicycle road is visible on aerial imagery

Here is a sign, something like "the road is unpassable by bicycle in ~350 meters" (to the north). I didn't check and just returned back.

Requires to re-check and fix tags of the road, for example add highway=construction for a piece of road.