To see all the devices using your Microsoft account, you'll need to do so on the web via your Microsoft account page (there's currently no way to do it from inside Windows).

hands on Redmond really – and I mean really – wants you to log into Windows 11 with a Microsoft account.… If you're setting up your own computer, rather than using a centrally managed one, Windows 11 ...

Learn how to use Windows Backup for Organizations - an enterprise-focused backup tool to back up and restore user settings and Microsoft Store apps.