I'm pretty picky when it comes to aircraft and CGI. It works okay for space/Fantasy adventure because it is usually a world in which none of us have been or are familiar with.
When it comes to things we know, I have a bit more problem with it.
The recent Catch-22 series on HULU has some fine CGI aircraft in it, I would say that they either used multiple layers with the two actual B-25's they had for the production or it was CGI aircraft. That said, the T-6 scenes with McWatt are not up to par with the B-25 formations used throughout the series.
Sometimes, the issue is the physics of movement and motion. The CGI artists and directors just don't get it right or they speed up the flying and it looks ridiculous.
Case in point: In Peter Jackson's "King Kong", they threw the laws of physics out of the window. Weight and mass. Kong jumps around like gymnast Curt Thomas on the parallel bars! Earth's gravity doesn't drop to zero when Kong moves. There should be momentum. It's suppose to take place in the world we know, but large animals like elephants still have to work within the laws of physics. They can't stop on a dime or move super fast. Kong was not believable.
Equate this to aircraft. Mass and motion.
They have to fly right and react to air movement and control inputs. 2006's "Flyboys", wired up director Tony Bill's Pitts Special to record all the control surfaces movements so they could be plugged into the CGI aircraft's movements. Nice idea, but it failed due to the fact that a WWII aircraft could never move like a Pitts Special could. Roll rate and turning radius far out strip what a Fokker Triplane could do. Ever see a real WWI Fighter fly with a rotary engine? It's like watching a slow motion ballet, even when they dogfight!
A Pitts Special in WWI would be like an F-14 in WWII!

There were some scenes in "Pearl Harbor" that I thought were good, but the majority lacked many things.
"Red Tails", eh.
Again, a few CGI shots were decent, but most were way under par.
I didn't think "Unbroken's" CGI was very good either. Lighting was too soft, even in the cockpit scenes with the actors. They have to do that to match the CGI color palette. Notice there's never any harsh shadows. Real life has light and dark areas. They spend a lot of money on the details of the aircraft so they don't want to then cover it up under dark, harsh shadows that typically come with actual, bright sunlight.
There are glimmers of hope here and there, but having been a video producer for 23 years, and a pilot since 1978, I get real picky when it comes to CGI aircraft.
My two cents.
Jerry