There is no evidence of Hans cheating in any overboard tourney, that I'm aware of- and Chess is a hobby of mine.
Hans has admitted to cheating twice on line, once when he was 12 and again at 16 yrs of age.
At 16 he was living alone in New York and trying to make a living streaming himself playing/teaching/learning chess. He says he cheated in random online games to get a better online rating and be able to play better players. This would bump up his online viewership and revenue stream. Paying the rent.
the guy is now 19, has spent the last 2 years playing over the board everywhere he can, around the world and has seen his FIDE rating go way up, quickly.
The online chess site Hans was at is Chess.com, and after the hint posted by Magnus; suspended Hans' most recent account, that they had previously allowed him to open.
The site has said they've found more evidence of Hans cheating online, but have not said when this 'new ' evidence is from.
Of note Chess.com and Magnus have some sort of financial deal going on/done and a few million dollars are involved.
Magnus did not play well against Hans, either just a bad day or he took Hans lightly- as the kid has the lowest elo at the tourney @ 173 points less. in fact Hans was a late substitute, when someone else caught covid.