I think FF users need these sites more than the sites need them. There's little motivation to support a browser with relatively few users, and a big motivation to get users to switch to their platform.
FWIW I'm not a firefox user myself, but I am not a fan of Google hegemony in browser tech.
Though I do launch Chrome to use Teams (because Teams is mandated by my org and I am too shrill and opinionated to install the desktop client).
Got it, I misunderstood your sentence above!
> Though I do launch Chrome to use Teams (because Teams is mandated by my org and I am too shrill and opinionated to install the desktop client).
Yes, it doesn't help that companies don't give a damn, either :)