I use Linux daily for work and personal tasks, but I sometimes have to resort to either a Windows VM or Windows running natively for the following:

Hardware

• Gaming with the Oculus Rift S
• My third-party Xbox One wireless controller adapter for the non-bluetooth models

Software

• Microsoft Office. I absolutely need the documents, spreadsheets, and presentations I work on to be interoperable with Windows users who exclusively use Microsoft Office. I am no position to ask them to change what software they use. OnlyOffice is the closest to achieving interoperability and its UI is very similar, but it still falls short. Multiple animations on 1 slide don’t carry over, none of the macros my coworkers have made seem to work, slide formatting may look different, and transformed cells don’t seem to automatically update.
• Some games, such as Fortnite and CastleMinerZ either have bug-breaking issues or the publisher/anti-cheat sucks and blocks Linux. I don’t particularly care for these games, but I’m also not willing to give up game nights with lifelong friends over these. I’ll play them, suck at them, and have a good time. Then there are games such as Halo: MCC that mostly work, but then co-op campaign de-syncs.
• Original Xbox and Xbox 360 development and modification tools/programs don’t work. I can’t even FTP a file over from Fedora without it being unrecognized. I obviously don’t expect any of this to change.

And I desperately miss the native Stream Deck software. StreamController’s page-changing is very slow, in general is finicky, buggy, and less intuitive.