We use DEPNotify pretty heavily for onboarding. I do have a custom script I have been using for almost 2 years now. We had the 12.3 issue so we removed the python line from all of our scripts.
Now the registration screen is showing blank all of a sudden even with the default script from here. https://github.com/jamf/DEPNotify-Starter/blob/master/depNotify.sh and the latest version of DEPNotify.
Just shows Register the Mac now with no textbooks or no dropdowns very similar to the 12.3 issue but it is getting the appropriate current user.
This happens confirmed on MacOS 12.5 and 12.6 \
