Mostly unsubstantiated rumors passed around about why certain employees no longer work there. Linus has on multiple occasions admitted he was doing everything for the first time and he didn’t always get everything right as the company transitioned from some dudes in a house to a legitimate company.

Some don’t like him because of his opinions on things (most of the apple fanboys don’t like him because he regularly shits on apple and iPhones).

Some people don’t like him because of drama with other YouTubers (mostly Steve from gamers nexus).

As someone who used to watch him daily back when it was just him and Luke doing stupid shit in a regular house and doesn’t really watch him much anymore I don’t think Linus is an outright bad person. All of us are flawed in many ways. He seems like mostly a good guy and those who have met with him and worked with him that I have met or talked to only ever had nice things to say about him.

🤷‍♂️