Recently rejoined the AMD GPU crew (RX6800XT) after a few years away. Only issue I've run into is when I have my second screen plugged in, the memory doesn't idle and runs at full speed - so increased power usage and temperatures. Idles fine with one screen only.
Google throws up a few people with the full speed idle memory, but they're all running high refresh rate monitors - I'm just on 60Hz ones. Main is 4K VA 60Hz 40" via DP, secondary is 1080p IPS 60Hz 24" via HDMI.
Installed a USB3 to HDMI adapter to run the second monitor for now, which has 'fixed' the issue (as the GPU is now only running one screen) but would be nice to get a proper resolution and have them both on the GPU.
That said, it's nice to be back using AMD's UI again, I've missed it.