Here are the list of issues I am seeing:
placing my mac in sleep mode or left idling results in the following:
cannot open any applications. Apple applications included.
cannot close any windows
cannot input text
To fix, I have to do the tradition Microsoft Reboot.
Never in all the years I have been using Mac I had to reboot to because of an issue. I am doing this 2 to 3 times a week.
External monitor goes on and off. Performed the SMC reset. Did not fix based on apples recommendation.
I decided to use a shorter HDMI cable. It fixed the issue. No issue prior to Big Sur.
My biggest complaint is that the Authorized Apple service center requires to keep my Mac Book Pro 15" for 4 months to replace my battery. I still have Apple Care. Now I am in Cambodia. I waiting for when I can travel to Singapore or Thailand were it will take a week. Travel restrictions because of Covid.