Comment by Krssst

Compatibility.

Anticheats makes multiplayer games hard to run on Linux (still sad that Apex walked back on Linux), and hardware may have sometime random issues on Linux (for some reason my mic was not working well on Discord (did not investigate, suspecting something on the software side since I could hear myself well when testing but my friends couldn't); I cannot use multiple screens with my current video card without my text editor dropping to 10FPS for some reason).

Plus Microsoft Office for people that prefer the ribbon over menus (but the browser version probably works well enough).

Though I feel that sleep is more reliable on Linux than on Windows today with "modern" sleep.