Windows 11 looks like the perfect reason to give UNIX-based systems another try. Literally the only thing that's kept me hooked to Windows are the Office apps. They're baked into so many of my workflows, from creating simple graphics to doing my personal finances, and of course plenty of legacy documents that I'd like to continue being able to use. They're really Windows-native I've found, even the official versions…
It's probably worth trying LibreOffice again if your last install was a couple of years ago. They take document compatibility bugs pretty seriously and fix a bunch with every release. That's probably the easiest step to take next, before looking at virtualization or a full Linux install with Wine.
I still use desktop Office for spreadsheets that need to be shared. Word docs are pretty well supported by Libre at this point.