Soldato
At a total guess @Rroff it's because both sides probably can't afford to throw away planes or pilots, Russia can't get new planes easily now thanks to sanctions, and Ukraine probably can't train them that easily anymore even if they had a lot more planes.
Couple that with AA systems on both sides (hell Russia was reported to have shot down at least 1 or 2 of their own planes if believed) and you have this weird standoff where it's mainly ground assault work going on.
Couple that with AA systems on both sides (hell Russia was reported to have shot down at least 1 or 2 of their own planes if believed) and you have this weird standoff where it's mainly ground assault work going on.