You have a good point about Microsoft products in particular, but... most popular Linux distros have open source apps that do everything that Office supplies. It just lacks the licensing for full cross-compatibility. Often available to be pre-installed - Mint, for example, can be installed with the full LibreOffice suite from the distro installation.
Most drivers and stuff are pretty easy any more too - APT, YUM, and other package managers are way better than Windows Update, Windows Store, Xbox Update, Office 360 Update, and whatever else Microsoft has all kludged together to keep their ecosystem patched. You can run it CLI, there are many GUIs, and you are able to drop down to as much, or little, detail as you want to know.
If you need Teams... well, you need Teams. But if you just need "A good word processor" - well, there's a ton out there other than Word that are mostly as good.
Sure, you can still find distros where you have to hand-cobble together things. But many modern distros are slick, polished, and ready for prime time. SteamOS is just one good example - it doesn't try to be a Jack-of-all-Trades, it just tries to be a good gaming interface, and it does that extremely well.
But, to actually answer your question - SteamOS can drop to a Linux Desktop and yes, you can run productivity apps, easily, even on a Steam Deck.... It has a Flatpak-based
Discovery Software Center and it's one-click install for any app there.... and if you actually needed Teams, it's possible to run that
through the Web, but I'll admit that isn't as easy or convenient as a native application.