Hi, I know literally nothing about the game, so could you please explain some interesting aspects of your favorite runs? Like, what is some interesting route or a trick or a funny detail or a groundbreaking run?

There are so many categories that I can't decide what to watch...

imo the non-speedrun-worlds ones are the best because the routing had to be made from scratch and there's probably still room for optimization, whereas speedrun-worlds runs are basically "how fast and exact can i be with a years/decades long solved thing?"