The US has just approved the transfer of F-16s to Ukraine. So that might change soon.
I am so hyped to see how long an F-16 lasts against the S-500 network. Whether or not NATO SEAD systems can counter the S-500 system is going to be one of the deciding factors in the course of the 21st century. It'll also be neat to see if NATO actually commits real weaponry or holds back the good stuff for fear of it failing and revealing that the Emperor has no clothes.