Chrome's support is way more invasive on google sites. Once you "go multi-profile" you are forced on every google site to do the same thing, because of the borderline-illegal tight integration of Chrome with google sites.
For instance, I can't have Youtube Music playing something on one profile while doing a Google Meet on another profile in a different tab (has to be the other profile window). In Firefox it's site-based (and tab-based) but Chrome locks down on any Google site.
Finally it's actually really hard to undo multi-profile in Chrome once you switch to it, I had to throw out all my Chrome profiles to get back to the old, preferred behavior.
For instance, I can't have Youtube Music playing something on one profile while doing a Google Meet on another profile in a different tab (has to be the other profile window). In Firefox it's site-based (and tab-based) but Chrome locks down on any Google site.
Finally it's actually really hard to undo multi-profile in Chrome once you switch to it, I had to throw out all my Chrome profiles to get back to the old, preferred behavior.