No, The DRL is running as soon as the car is in READY, even if lights are off and park brake setwhen starting.
The ETACS-ECU setting "DRL function" determines how it works. Can be changed with the MUT-III, but I can't do that myself.
It depends in which DRL mode it is programmed.
My european MY20 is sadly in the wrong one. I'll try to get my shop to change it with the MUT at the next service.
In the mean time, for camping and car cinemas, I remove the 10A DRL fuse F4 in the main fuse box (engine).
Removal of the DRL relay...
I have the same problem with my european 2020 model.
The trick with the lights in off and parking brake doesn't seem to work on the 2020 model.
I often sleep in the PHEV and don't want to light up the whole campsite with the DRL.
The app is almost useless because the a/c works always on 100%...