A good or corporate BIOS/etc. updater will do this to avoid requiring a recovery at the next boot
But the files on the disk must still be decrypted somehow. The key must be stored somewhere.
According to this: https://windowsforum.com/threads/pause-bitlocker-before-bios...
> BitLocker is now suspended, which means the drive remains encrypted, but Windows temporarily stores the unlock information so firmware changes won’t immediately trigger recovery.
