Hitting infrastructure with precision missiles is what you do in the opening stages of a land invasion, not hit a few apartment blocks and playgrounds here and there. One way to galvanise resistance is to randomly kill civilians. Russian conscripts and even their regulars don't want to be there, the Ukrainians are fighting for their lives, their family and their land. Russian men of fighting age are running from their homes, Ukraine can't take all their volunteers, there were/are too many. From my armchair I reckon Russia lost in the first week of the Special Operation. Winter will be brutal for everyone, doubly so for invaders as inept as Russia has shown itself to be
In the opening stages Russia almost certainly thought they could replay 2014 and that Ukraine would fold so limited their initial strikes - you literally had people in the Russian leadership booking restaurants in Kyiv for days after the invasion seemingly under the impression it would mostly be a change of government and a bit of mopping up!
Intimidation seems to be all Russia really knows - so I suspect another round of strikes against civilian infrastructure is on the table before winter sets in.