I'm having the same, never-ending problem on my 2017 MacBook Pro 15" with TouchBar. Over the last several months I've completely wiped and reinstalled the OS four times in order to combat these frequent issues. I knew to expect problems on my Mac with the release of new Mac models but it is basically unusable now.
2017 MacBook Pro 15" with TouchBar
250GB Solid State with 215GB available (I use cloud storage)
16GB of RAM (supposedly)
Big Sur 11.13
MacBook crashes every night after sleeping and I open the laptop to daily kernel panic reports;
There's a huge lag and delay in typing from the device itself;
I've reset the SMC, I clear Safari caches every day, I tried Disk Utility and First Aid but they both report no problems.
Safari cannot load or run the following websites without using up 2GB of RAM and crashing the computer: Mailchimp, Basecamp, Facebook, Twitter, Adobe Spark, Amazon... no website works longer than 15 minutes;
I have consistency issues with my storage files, and some appear to be missing;
Video playback is choppy;
TrueTone won't enable or disable automatically;
I have not had third party apps installed in over a year (I use Safari exclusively after having so many software issues early on with this model);
I have no items set to run at startup;
I only have 7 apps from the App Store itself, 4 of which are related software.
I have disabled automatic graphics switching per the previous comment in this thread so I'm hoping that works. I know this has been an issue for me for several months now so I'm just sitting back and still waiting for Apple to fix this. Seems like there is nothing we can do.