If by disparity you mean sometimes Windows is better and sometimes Linux is better. I have one of those GPUs. Give it a try before you slam it. Valve has thrown so much money into Proton that support is amazing compared to when I tried a decade ago.

Google does it so much I’ve had trouble finding favorite places because they’d rather show an ad that overlaps it.

It already has ads. Those businesses it highlights for no reason at all when you’re scrolling around.

It’s fine. Not sure where you heard it’s terrible.