My macbook pro is model: late 2016 with the Touch bar. I've the issue since middle of July.
In this moment the issue still exists. What I did in the past 30 days.
#1 Software Updates
I did three software updates. Each of those software updates was between 2 and 3 GB.
#2 Big Sig Reinstall
I reinstalled several times the Big Sir operation system.
#3 Reinstall of the old version of the operation system
The same result as the point 2.
#4 Reinstall from Internet: Command + R
The same result as points 2 and 3.
I found an article: https://tonyflorida.com/critical-software-update-is-required-for-your-mac the final result motherboard replace.
Step by step: My opinion is something is wrong between Big Sur and the TouchBar. Apple what do you think ?