The only two moats MS has for desktop OS usage are:
1) Kernel-level DRM for multiplayer games (looking at you, Marathon)
2) Intentionally nerfed MSO 365 apps on web and macOS
You could make a strong case that MDM (which InTune uses as well) negates the AD + GPO advantages of the past 20+ years in enterprise.
There's also a bunch of software that only runs or runs best on Windows.
I found virtual files support also somewhat critical. This is not really stable on Linux yet and makes using Nextcloud with 8TB and Million of files pretty difficult.
> 1) Kernel-level DRM for multiplayer games (looking at you, Marathon)
This finally forced me to quit League of Legends (this is a buff)