Most people protect against access by whoever stole their laptop, with Microsoft and TLAs not being considered a threat. Those who do probably don't use Windows in the first place.
Your government might be able to get the key - if that's part of your threat model - but they probably have easier ways to force you to give it up.
Anyway, FDE is often on by default. Do you really believe the average user is going to print out the backup key?! Do even tech savvy users have printouts of all their eg 2FA codes? Anyway, that would have worse correlation of risk as users would probably keep the printout next to their computer.
That is assuming you somehow forget your encryption key but remember the login to your microsoft account... that you used once 2 years ago when you were installing the machine.
It also means anyone that does get the login for your MS stuff can decrypt your laptop
Anyone that does get the login for that MS account can decrypt the laptop, but often times they don't have physical access to the laptop (say some hacker who does not know you personally). If they let people around them get the credential, I think it is likely that they will let others get the encryption key even if it is not saved on the cloud.
And I think backup using the cloud is a nice option, although it would be better to have a master password that you remember and doesn't require writing it down physically. That way people having access to your cloud will not be able to read it, and you still have it when your house burn down (which does happen for some people...).
