If I use vaulting to skip puzzles does it go under Glitchless% or any% no flight? Because I dont feel like vaulting was supposed to be a game mechanic. But its not really a glitch imo either

Vaulting isn't a glitch, so if that's the only thing you're doing then it would be considered glitchless.

well i mean you can skip a lot of parts by vaulting

As long as it’s not OOB it doesn’t matter.