I cannot replicate. I have portrait only, with rotation allowed only on long press of the assistant button.
It has persisted across multiple reboots (still building and installing stuff so it’s not my daily and is turned off unless I’m working on it).
I did have an odd issue where the screen wouldn’t turn back on with a power button press after sleeping though. The phone was on, I could feel haptic feedback.. nothing on the screen though. After a full boot and shut down, I can’t replicate it again though.