Can't select DONE to downgrade my plan
How to downgrade my storage plan
MacBook Pro 15″, macOS 12.4
Question marked as
See the following from Downgrade or cancel your iCloud+ plan - Apple Support
If you can't tap Done, make sure that you're signed in with the same Apple ID that you use for your iCloud+ plan. You can also try following these steps on a different device. If you still need help, contact Apple Support.