Long time listener, new poster here - 16" MBP i9 - had the runaround with Dev Beta 5 and Public Beta 4, and settled back to PB4. Installed Dev Beta 5 and was greeted with a bunch of beachballs in Outlook which I couldn't do for my machine, and also many apps that would not launch due to not having enough privileges. In System Preferences / Software Update tab, I was also greeted with the message "Your Mac is running the latest software update allowed by your administrator" - and I'm clearly running on an admin account and zero MDM profiles on my machine.... did the usual things such as running Disk Utility, and a bunch of other Terminal commands to try to reset a few things to no avail.
I then went back to beta.apple.com to get the latest Public Beta, which is the build from two weeks ago - so it seems that they may have pulled this build from the Public - however it still does download as the Dev Build as I have tried going back and forth twice between builds to see if admin rights would be re-installed after seeing good results from PB4 - but no luck!
From my perspective, the DB5 has some challenges in it right now for me, so I'm sticking to PB4 until the next build!
-Jeff