Tried to follow https://www.reddit.com/r/sysadmin/comments/16sgdqb/windows_2022_move_recovery_to_the_end_of_the_drive/
on Win11 and ran into problem at final "reagentc /enable" stage due to bitlocker being autoenabled on the recovery drive.

The trick is you need to format (via the simple volume wizard) as NTFS *with* an autoassigned drive letter.

Then you run "manage-bde -off driveletter:" (you can use "manage-bde -status" to check)

Then use disk management to remove the drive letter.
Then you can do the GPT tweaking to mark it a recovery partition and finally "reagentc /enable"