As a small business, I need MS office & 2 other pieces of software that have no Linux versions. Rightly pissed off that I'll have to upgrade my main machines to Win 11 by Oct 25.
MS office PWA is nearly indentical to the desktop apps these days. I switched to linux where I use outlook and excel via pwa for work, and it's been fine. My M$ centered workplace is actually setting up an option to use linux on their laptops soon, too. I can't wait for that.
Which one specifically? Outlook is identical, and excel is nearly the same. Excel is just missing a couple developer mode options like adding a checkbox to a cell, which were basically just gimmicky imo anyways.
Wine is pretty good for most things I've tried, except new Office (will run the old versions OK). Try O365, if Libre Office won't cut it. You can try the installer in Wine without hurting anything. For your other stuff,I keep a Windows 8 vm around off network to run some ancient radio programming software, so maybe that is an option.