Try “no air support” for $1000, Alex.
Air support is difficult when units are moving so fast and are indistinguishable. It becomes impossible to ID friend and foe. Situational awareness is essential for calling in air or artillery.
Russian air has as yet been unable to intervene in all this effectively.
They will, probably, eventually. But where and when?
Yeah where is the russian air force? They should have stopped ukraine cold.