Hi,
thanks I specifically tried to map it by using most of the same ways as to not damage the bus routes which made i much more painfull, but I figured why not.

As for mapping there is wiki page (https://wiki.openstreetmap.org/wiki/Tag:roundabout%3Dturbo) which basically says to make it normal and add different lanes and change:lanes tag or to do it like here and add separate ways for lanes, which better represents the situation. I did it like this because I didnt mind the extra work and it more accurately shows the situation and also includes various kerbs that would be missing which means that lanes are technically different ways in OSM.

Also for Slovnaftska the residential tag didn't make sense because it is outside the residential zone which starts in Bajkalska.