I feel the same and after only 5 minutes I read the comments here in its voice.
The intonation stems probably from English being not his first language.
I’m not sure about that. It sounds like both to me. I read that some people use generated speech with strong accents to mask that it’s ai. But who knows in this case. Either way, it’s not very pleasant to listen to
… he’s been doing this YouTube channel for about a decade. It’s his real voice.