Steam deck and my desktop. The only thing that would be useful is if I could find a program that would work with excel macros for union business. I basically have always used computers for gaming and browsing.
As far as I understand, the wbe versions are very stripped down compared to their desktop counterparts. That's a great question though and one I should explore. When I actually spring for excel/365 I can check out the web version while on Linux and if it doesn't work, look into setting up a virtualized Windows setup.
Btw, the web versions of MS Office are completely free when opening files on a personal, unpaid OneDrive via the web interface at https://onedrive.live.com/
The web versions are literally the thing that Teams launches when you share and open documents there. Teams and the US's obsession with Chromebooks at school are probably the driving factors behind improving Office Web. Benefit for non-ChromeOS Linux users is surely just coincidental (kinda like Adobe Express).