csrutil disable
Restart computer
In the terminal, type
sudo open /Applications/TextEdit.app /System/Library/LaunchDaemons/com.apple.ManagedClient.enroll.plist
change
<key>com.apple.ManagedClient.enroll</key>
<true/>
to
<key>com.apple.ManagedClient.enroll</key>
<false/>
So that the changes take effect
After using the method above to get to 14.3.1, how should I proceed to get to 14.4 or future 14.x updates?
Edit-
After no responses, I decided to try using the System Settings Software Updater, that seems to have worked as expected, and so far no enrollment screens after a couple days.