> They didn’t find any instances of cheating after August 2020

They banned him after August 2020, and only reinstated him after a full confession the next year.

The fact that, after having being caught red handed in online for-prize tournaments and knowing he’s being monitored very closely online going forward, he suddenly starts rising at a world-historic pace (at an age this has never before happened at) at OTB tournaments suggests to me that having lost the ability to reliably cheat in one forum he turned his attention to another.