I have switched to Firefox but I'm having a hard time. Firefox feels sluggish compared to Chrome and uses an insane amount of memory. And I really miss tab groups as Chrome had them. There are some add-ons for Firefox that try to imitate this feature but none of them has everything I want (e.g. the ability to collapse a group in the top tab bar). And most of them build on top of Firefox tab groups which come with an isolation feature I don't want (and haven't found a way to disable for tab groups).