But it seems as Hans wasn't entirely honest about his cheating and therefore chess dot com banned him a week ago.
And there's the incredible sharp increase of rating, basically from 2400 IM level in 2021 to Super GM 2700 level (live ratings) within 2 years. Yes, that is legitimately possible, other players had similar incredible gains, so it's not completely unheard of, but he is either one of the greatest improvers of all-time or something is wrong.