@Lady This is seriously such a weird facet of Pokemon games, like, this feels like the last series to have a weird complicated timeline and games that functionally never happened but
@coriander i don't know if you're aware of this already or not but in let's go! pikachu and let's go! eevee they retconned red and blue into NPCs that the player character interacts with, which means basically all of the original three generations mostly couldn't have happened (since team rocket obviously still exists in let's go!; cinnabar island is still there; mewtwo was never captured; etc etc etc)
@coriander however all of these retcons happened in The Alternate Universe Where Mega Evolution Exists™ and now that they've removed Mega Evolution from the games i think we're still kind of waiting for word as to whether that plot thread is going to like… stick around?? or be dropped??