[nosse]

One of the biggest threads to a fighter is another fighter flying above it. From the upper guys perspective everything is moving and everything below is green/grey/brown or dark blue. At the same time stealth technology is rising and using your own radar might show your own position.

Fighter camo is probably not that big thing, but all things concerned it just might give a little edge in some situation.

[electromagnetic]

I think fighter camo likely has a bigger role to take off and landing when they're not in a 100% safe area. The military doesn't just plan for the current war, but for all possible wars.

Fighters aren't going to handle the small arms fire like a Warthog will. So when you can't add the extra armour, it's probably worth making it harder to see.