I think the fix was in ARL1 but the release us is only ARL2 without the fix. My theory is that the camera fix was put into the Android Pie OneUI update (as some who has the beta does not have the freeze issue) which is supposed to be out within a month or so.
It does make you wonder, especially when the update page on AT&T now shows this (only referencing a security update):
Here is the current update: Android 8.1.0 Oreo
What's changing: Android device security updates and enhancements
I got the ARL1 update a couple of days ago and have not experienced any camera freezes. So it seems this update was the fix, as the camera would freeze constantly before. Crossing fingers that it keeps working the way it should have.