I’d like to think there’s a technical reason that couldn’t do this but considering it’s ms I’m not sure that’s why.

Probably because of their fucking dinosaur of a filesystem. NTFS was created in fucking 1993. And 33 years later, it’s still not only the default filesystem for Windows, but (barring certain very niche exceptions) it’s still the most modern and most advanced filesystem Windows is capable of using!

How is a company with resources like Microsoft incapable of developing and introducing a new filesystem? Or, hell, there’s nothing stopping them from just adopting and supporting one of the many better open-source filesystems out there.