How to downgrade to non-beta version of Mac OS Ventura without clean my apps

I found this out in a search:

How to Leave the macOS Ventura Public Beta

1. Open the Apple menu from the menu bar and select System Settings.
2. Select General > Software Update.
3. Select Learn More under the Automatic Updates section.
4. Select Restore Defaults.

You have to erase all contents and settings, reinstall the old OS, then migrate from your back up.

It is best to do all that from a bootable installer USB. Create a bootable installer for macOS - Apple Support

if you have a T2 Mac, you’ll need to enable booting from an external drive before you erase.

If and only if the 2 above suggestions are not working.

The User may require this method from Apple in Reviving the Computer

Read all the Details Before attempting this method

link below

Revive or restore a Mac with Apple silicon using Apple Configurator - Apple Support (CA)

FWIW, your best bet is to sign out of the beta program and wait for 13.3 to be released. Shouldn't be too long.

WildNightFox wrote:

It's so sad. I think that i could to do something to reinstal in Recovery Assistant Mac OS 13.3 non beta.

You don’t have a non-beta recovery. Recovery reflects the OS that is currently installed, although sometimes that gets corrupted, it seems.

Then you will have to follow Barney's post. Back up your Mac, create a Ventura bootable installer, boot from it, erase your Mac, install, restore your data and apps from the backup.