AMD released 20.8.2 driver. I checked it - PM support it. OpenCL still from 20.7.1.
So 20.8.2 can be installed without any difference with 20.7.1 drivers.
I tried to installed 20.8.2 with my 12 rx 4gb flashed bios but when i tried to patch with the amd patcher it says that it was too big in memory and unable to patch, for me the 20.4.2 is stable as for my experience, the last thing i need to tune up is the proper command line for my rig, because i've noticed that it frozen after lessthan an hour and before it was freezing some of my cards begin to reduce its hashrate power.