Have you tried changing user-agent header or similar? I'm not familiar with your specific example but have encountered plenty of sites which complain about "not supported" but work fine when UA header is the "right" one.
As a Firefox on Linux user I also see a problem. It isn't that uncommon to see a feature drop on windows and mac before linux.
And for a long time, there has been an issue where if you update Firefox with a linux package manager, you have to restart the whole browser, or the browser stops working. That isn't a problem on windows or mac (usually). And it isn't something you have to deal with with chromium on linux either.
> But e.g. Google Meet plainly refuses to blur the video call background when run on Firefox.
That seems rather like a Google dark pattern where they take advantage of owning both sides of the communication channel to abuse some internal Chrome API that Firefox knows nothing about.
Seconded, I have no issues. In fact when I’m not on ff I immediately miss the lack of cookie containers and get annoyed by the horrible need to log in to and out off different accounts all the time.
On ff I sync my add-ons, bookmarks and containers. What’s not to like?
Open a new tab and you’ll see advertisements in your homepage (which afaict you cannot change to a non default page)
Open a 1080p YouTube video and watch your processor get slammed. No, I do not want to install an unvetted third party plug-in. If nothing else, flag that the browser doesn’t support hardware acceleration when playing videos, in easy to understand terminology so I, and thousands of others don’t have to go troubleshoot exactly what is causing my computer to choke.
Hardware video acceleration is fine now, and apparently has been for some time.
But e.g. Google Meet plainly refuses to blur the video call background when run on Firefox. It happily does that when running in Chromium.