Nobody is immune from issues. I've had OS X Mavericks to osMAC Catalina. The only one I had was an issue was OS X El Capitan, which was very minor. This was on a MBP late 2013, now I have a iMac 27". Every machine is different. Some people, don't do preventative maintenance. First time for everything. I'm betting this osMAC Big Sur is more polished than Catalina was. We'll see. I consider myself lucky. You guys that do the betas out there, my hat's off to you.Never had any issues. This used to be a topic „back in the times“ when the USB implementation was even worse than today, and devices did draw too much power etc...