Retrieving deleted notebook

Hi, smpa01 

Currently there are two methods to recover deleted notebooks, you can choose to use according to your situation.

Approach 1: User-managed redundancy with Git integration (in public preview)
Approach 2: Manual approach to backing up code content

Microsoft Fabric disaster recovery experience specific guidance - Microsoft Fabric | Microsoft Learn

Best Regards,
Yang
Community Support Team

If there is any post helps, then please consider Accept it as the solution to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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I've explicitly turned source control / DevOps integration specifically to protect against this.
Even if we're not using proper branching* yet, just the guard rail of having code backed up is great - also means I can get people into the habit of committing often.
* Yes, I know we're ignoring the directive of "Friends don't let friends commit to main"