I’m fairly sure Microsoft is actively trying to screw Firefox. Outlook has always sucked in Firefox, teams is a shit show. When you use a useragent switcher somehow a lot of features seem to work magically in Firefox (which tells me MS is doing this on purpose).
For Outlook (exchange) I use Thunderbird with a paid plug-in (to make the 2FA stuff work). It’s pretty cheap and totally worth it for me at least.
That is true, but my smart TV and smart scale both got something like 5 years of updates. Who buys a new scale every 5 years? My parents still have a scale from the 90s that works fine.