My presets are gone

This is what I suspected - that the originals would be there. What this means is that for some reason that we haven't established, Audition has restored a 'vanilla' set of presets. It will do this if anything is damaged or altered in your Preferences folder. The other way it can happen (and this has caused a few accidents) is if you start Audition with the Shift key held down. That will automatically wipe everything. If you can locate the appropriate files in the 2022 Preferences folder, you can copy them and replace the vanilla files - that's the only way you will get anything back. Make sure that Audition is not running at the time, and make backups of everything. Delete the appropriate vanilla file in 2023 and replace it with the copy from 2022. Anything you fail to replace will once again be replaced by a vanilla copy.

I'll be the first to admit that the whole thing is a bit of a pain; there really ought to be a better way of backing up your favourites and presets so that they can be restored without having to go through all this rigmarole, and potential loss, but there it is - at present there isn't.