That wouldn't make sense though:
First as a doctrine, it would be a stupid one - they tend to use paratroopers for surprise taking of advanced positions, and air support is vital to help them keep their position until reinforcements can arrive. Point in case, the failure at Hostomel. Their doctrine emphasises anti-air defenses because air superiority against a superior enemy ( NATO) isn't certain, but that doesn't mean the Air Force shouldn't be used at all, especially against an inferior enemy
Second, they don't seem to be even doing that - there are small scale ( 1-2 planes) raids deep in Ukrainian territory, and neither their planes nor their SAMs can deal with the drones Ukraine fields, even over Russian held territory