I spend every day in all three OSes: Linux, Win10, MacOS. Time-wise, it's about 65% Linux, 25% Win10, 10% MacOS, mainly because I spend most of my time in xterm/Bash and Firefox, both of which are best in Linux. Win10 has the required Office365 apps (Outlook, mandated by my employer) and a couple webapps that work best in Google Chrome on Win10. MacOS has the MS-Teams native app and Chrome for conf-calls over Teams or Zoom, which are most stable by far on the Mac.
FWIW, I could not do what I need to do, exclusively on MacOS or Win10 -- they don't support the kinds of work I do most of the time. OTOH, I would not be happier with only Linux -- I could do it, but it would have annoying side-effects. Having the other environments for the things they do better is how I prefer to work.
Interesting. Outlook does have a web-enabled version that you can run from any OS. Also, Teams and Zoom both have a Linux client. While the Teams client is iffy (sux big time), Zoom seems fairly stable.