I've suddenly started having a problem with Preset Syncing. This with the latest version of both the full release and beta versions. When I try to shut down II get a message saying Photoshop will close when presets are synced. (I can't sho you a screen shot right now because Photoshop is locked up). I OK the warning dialog, and wait and wait but Photoshop does not close. I eventually used Task Manager to close Photoshop.
I uninstalled Photoshop choosing to remove settings — I have brushes, workspaces, skies etc. backed up — but it was still happening after the reinstall.
I have turned off preset sync in Preferences. [EDIT] but this was not actioned because Photoshop does not shut down properly.
I looked though System Info and found some 32bit plugins that 'did not load' so I deleted them.
Right now I have left Photoshop locked up for a good 30 minutes now, but it is still using a bunch of CPU cycles, and this is an i9-13900K

OK, I just closed Photoshop via the Task Manager and restarted holding down the Shift key to force third party plugins to not be loaded. The problem persists, but I have now realised that my Preferences changes, and particularly Preset Syncing did not stick because Photoshop did not shut down correctly. I could try a manual reset by deleting the preferences file, but it will recreate them with Preset Saving turned on when it starts.
I tried it anyway, closed with Task Manager, restarted, and turned off preset syncing again, this time choosing to leave the cloud settings thinking it would not try to communicate so might not lock up.
Note. Same problem.

Task Manager shows Photoshop to be using 0.3% CPU untill I click on either Yes or No which locks up Photoshop again and CPU use goes up to 7.0%. Cancelling lets me carry on using Photoshop.
I have a lot of third party plugins and they are all fully legit, but the Shift key trick stops them loading, so it seems unlikely that is the issue.

I feel stuck now, so I am going to leave it trying to sync while I take the dog out, and see if it is still hung up when I get back, but any ideas would be welcomed.