It's part of a long term strategy from Microsoft to break users of their habits, i.e. managing your own computer the way you want to manage it, and instead get them to stop thinking and just let Microsoft tell you what goes where (hint: it's the cloud).

That's why everything in Windows seems to be less and less concerned with the actual Windows operating system and the software in it, and more concerned with Edge, web apps, and OneDrive. That's why they force the account in the OOBE, why they won't let you forget you're not using OneDrive in the File explorer.

That's why desktop/local OneNote was effectively destroyed and now it's basically just a cloud service. It's more profitable if user's shit is locked on their server instead of locally. They're slowly getting ready to do the same thing to Outlook.

Their dream, their wildest ambition for Windows is for it to be something like a kiosk you use to access 365 on the web via Edge. To get there, they'd really, really, really like you to stop thinking about anything local.