As it seems, there indeed is a new chunk format which was attempted to be implemented, but the developer just vanished. The official website is down and only an archive of the download page exists and on the seemingly official Discord server, he...
Pepsi, and it's companies, did not pull out of Russia like most did, even tho they orig said they would, so I boycott them. (Except when drunk at 2am and Taco bell is only place open.)