The ability to manage your Microsoft 365 account has been available in Windows 11 for the past several months, so the option should be accessible on your PC. To check, go to Settings > Accounts.
If you're running the latest 22H2 update for Windows 11, your Microsoft 365 account information automatically pops up. If you haven't yet updated to this latest release, click the setting for Your Microsoft account to see the Microsoft 365 details.
Under the name of your subscription, the first piece of info shows your subscription price and the type of billing in place, such as recurring billing. The next area shows you the initials of the people currently sharing in the subscription. The third area displays the total amount of OneDrive storage available and the amount currently being used.