infinitieunique This is absolutely not the way to respond to someone genuinely trying to help you.
I understand you're upset, but no, almost nobody seems to be experiencing this, and no, it's not because you're magically running "heavier" apps than most other users.
For you to have such a significantly worse performance than basically everyone else, something sounds very wrong, you're testing this on YouTube, that's not a heavy app, that's not normal.
You mentioned something about app optimization and that it doesn't matter because it doesn't happen on stock. GrapheneOS works differently, it does AOT (ahead-of-time) compilation of apps and while that's happening (a notification is present while it's ongoing), things are probably going to run slower, but if you're having slowness after that, it doesn't at all seem related to GrapheneOS, it honestly sounds like faulty hardware.
Again, I understand you're frustrated, but the way you've gone about this really isn't productive and won't help you find any kind of solution.