Something is wrong with live view in Chrome on a intel i7 MBP running Big Sur. It causes 100% cpu use and full fan speed on my macbook pro, slowing down everything.
Chrome Version 89.0.4389.128 (Official Build) (x86_64)
OSX 11.2.3 (20D91)
Model Name: MacBook Pro
Model Identifier: MacBookPro14,3
Processor Name: Quad-Core Intel Core i7