To be honest, we don't have extensive testing at 480 FPS. We do have at least one complete playthrough of the game at 144 FPS, but everything more than that is just spot-checks.
When a full QA playthrough of a game takes ~120 hours you can't really test every situation with every combination of settings. However, most "systemic" graphics things either break entirely or not at all. (Sadly, framerate isn't really one of those. There are several cutscenes in the game which required scene-specific HFR workarounds. And a few battles at the very end which needed to be limited to 60 FPS)
Generally, if you want to make 100% sure you don't run into anything unexpected, you should probably limit yourself to 144 FPS