I stumbled on this site last week and anecdotally I can confirm that disabling Keystone helps. I was driven to find answers after no longer being able to hear people on Zoom calls because of the fan noise from my 16" MBP. I got sick of having to wear noise cancelling headphones when Chrome and Zoom turn my laptop into a space heater.
The Keystone thing though, it's not a panacea. It seems to fix the issue with WindowServer running away with the CPU, but Chrome is still pretty terrible. I decided to just deal with the switching cost and stopped using Chrome altogether. It has made all the difference. Switched to Firefox and I'm not looking back.
The Keystone thing though, it's not a panacea. It seems to fix the issue with WindowServer running away with the CPU, but Chrome is still pretty terrible. I decided to just deal with the switching cost and stopped using Chrome altogether. It has made all the difference. Switched to Firefox and I'm not looking back.