Most of the hate comes from Gamers Nexus, which is an extremely self-indulgent, self-aggrandizing YouTube that seems to pick fights with everyone and treats the Rampocalypse like every board partner is at fault. He is an expert at making hay.
I wish someone could give him a hair scrunchy.
I got into following the channel rather late, like, around 2017.
Linus has absolutely said some cavalier things, and his channel has a strong history if admitting their faults when they are called out.
They mostly stay in their own lane and don't go picking fights, plus as a policy they don't sue people they don't have to, even when slandered, so being as popular as they are and being as passive as they are, thsts a pretty big bulls eye on their backs.
Tl:Dr - - nothing reprehensible about the channel, just very advertiser-friendly and easy to snark on.