Poland delivered the first batch of F-16s intended to be fully operational as part of Ukraine's regular air force. Report didn't say how many, but talk has been of two squadrons, so 32 planes. There were 10 F-16s in Ukraine being used for training, and according to a report, Ukran pilots flew a mission using four Falcons, over Kherson. As has been their practice with new weapons/equipment Ukraine will test the F-16s in actual combat, but in as controlled a situation as possible. Then the Ukran pilots will share the real-world experience with their fellow pilots.
Pundits say Ukraine needs a bare minimum of four squadrons, 60+ planes, to have an impact on the war. Others, like the many military think tanks, say Ukraine needs 12 squadrons, over 180 F-16s to win the war and then defend against future aggression. Taiwan has 160 F-16s, but they have a much smaller territory to defend, and they also have other modern fighter jets, like the Indian version of the French Mirage Fighter Jet.
No doubt Russia will attack the airbase(s) where the F-16s are assigned.

