All those mounts that clip in front of the hazard light button have a ball mount adapter, just unscrew the mount that comes with it and use yours if you so desire.
When I test drove a 2020 GTR before purchasing, the HUD wasn't working. Got back to the dealership and told the sales guy and then it was working after we restarted the car. Thought I was just not seeing it originally due to my polarized sunglasses, but seeing that you had this issue too makes...
Most cameras do not record any vehicle's HUDs (Active Driving Display) well. Same issue you sometimes see with any vehicle's LED accent lighting flashing in videos as well.
Not a concern.