Hello mintesnot160,
Great question.
Below are steps that might help you restore deleted Freeform boards.
"Recover a recently deleted board
If you change your mind about deleting a board, open Recently Deleted to recover the board.
If you delete a board that you started and shared with others, it no longer appears on anyone’s device.
- While browsing All Boards, tap Recently Deleted in the sidebar.
- If you’re in Split View, tap
, then tap Recently Deleted. - Do one of the following:
- Recover a board: Touch and hold the thumbnail or name of the recently deleted board, then tap Recover.
- Recover several boards: Tap Select in the top-right corner, then tap the boards you want to recover. (A checkmark appears as you select each one.) Tap Recover at the bottom of the screen.
- Permanently remove a recently deleted board: Touch and hold the board, tap Delete, then tap Delete.
Deleted boards remain in Recently Deleted for 30 days.
If you delete a board you’ve been added to as a participant, you may be able to access it again if you still have the link you received when you were invited to open the board."
The information above can be referenced in the article below.
Delete your Freeform boards on iPad - Apple Support
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Take care!