Same here. I've been using Firefox as my main browser for 20 years now. There was a period where it would have some issues, but it's been run great and smooth for the past few years. I don't get the hate.
Even the fully local translation is really usable now <3. I don't use chrome for anything and it's not even installed on my daily driver anymore.
Ironically, the only time I have had issues, overriding the user agent to look like chrome or edge fixed it. So those websites were deliberately broken with Firefox, not Mozilla's fault but pure malice and dark patterns. Office 365 is one of these sites by the way.
