I had to look it up myself. These two links seem to cover the controversy pretty well.
https://www.pcgamer.com/the-recent-criticism-of-linus-tech-tips-explained/
https://fandomwire.com/the-linus-tech-tips/
Hardware channel Linus Tech Tips defended itself following a competitor's claims about its "accuracy, ethics, and responsibility."
SAAS Pass.
I like that it backs up to iCloud.