Note that password-based Bitlocker requires Windows Pro which is quite a bit more expensive.
> sign into your Microsoft account or link it to Windows again.
For reference, I did accidentally login into my Microsoft account once on my local account (registered in the online accounts panel). While Edge automatically enabled synchronization without any form of consent from my part, it does not look like that my Bitlocker recovery key is listed on https://account.microsoft.com/devices/recoverykey. But since I unlinked my account, it could be that it was removed automatically (but possible still cached somewhere).
> sign into your Microsoft account or link it to Windows again.
For reference, I did accidentally login into my Microsoft account once on my local account (registered in the online accounts panel). While Edge automatically enabled synchronization without any form of consent from my part, it does not look like that my Bitlocker recovery key is listed on https://account.microsoft.com/devices/recoverykey. But since I unlinked my account, it could be that it was removed automatically (but possible still cached somewhere).