actually yes, there have been alot of games in the rpgmmo ish game like genshin and the ark / survival builder games like Palworld.
Whenever a game becomes popular people and studios try to make thier own. Palworld is an example of one that worked (it being Ark survival evolved: pokemon editon)
Yes, from I’ve read they haven’t quoted any specific patent to anyone. They don’t have good grounds, they just want it shut down.