I’m running fedora 33. When im using firefox and i move the pointer to the right most edge of the screen, sometimes the clicks(and hover) on the scrollbar don’t register. I have tried fedora 32 before and it was still an issue back then. But i didn’t bother reporting it since it was a very minor thing. I’ve tried many linux distros and this issue has never been a thing except on fedora.
So im thinking it has something to do with the firefox build.