Recover Puzzle Progress
Oculus Cloud Backups
If you either uninstalled Puzzling Places or somehow lost all puzzling progress, you might be able to restore the savegame files by recovering from Oculus Cloud backups!
Check if Puzzling Places was backed-up by Oculus by logging in and seeing if Puzzling Places is on this list - https://secure.oculus.com/my/cloud-backup/
If yes, then uninstall Puzzling Places from your Quest then redownload and install it once again.
Once you launch the game, the progress saved during the Oculus Cloud backup should be restored!