A lot of open space is great because the wind can blow. When you block the wind you get poor air quality.
In Cracow, Poland we have that trouble, there are buildings that block natural wind and the polluted air sits and makes people sick (PM2.5 and PM10 are > 300% their safe levels, see https://map.airly.eu/)
Most of Russian cities are built on a plain (or even better - major river) and they don't have any problems with venting out polluted air. Regular pre-Brezhnev street gaps are more than enough for that.
However, most of Russian cities have half of year of virtually winter, with temperature near or below zero celsius.
This pretty much makes such apartment blocks torturous/unlivable due to chilling winds if you don't have a car. And if you do, keep in mind that they're not built for that, so lack of parking and congestion are your new friends.
