In the 2nd trailer of Top Gun 2, a plethora of swift airplane maneuvers and at least one dogfight take place. Are those scenes real, captured by a chase airplane?
Or they're just simulation (Computer Animation)?
According to John Hamm...
“We’re shooting the movie in, I think, 6K,” Hamm explained (via JoBlo) at the premiere of Amazon’s Good Omens. “So it’s incredibly hi-def. The aerial footage is mind-blowing. And it’s mostly practical. There’s not a lot of CG. Those guys are really up in planes and getting thrown around in multiple Gs.”
Looks like real airplanes doing real maneuvers, but it looks like there is some camera trickery, editing, and/or post-production effects to amp it up a bit. Camera work can make two planes appear to be closer than they really were; post-production compositing could also make two or more planes appear to come in very close when they were never actually close at all, same for "narrow-miss" explosions.