@jkoski matrix servers have different features, and they vary alot. Some big considerations are things like 1) how much of the history does it pull down for foreign channels 2) what extra features for room administration does it provide (for example are ephemeral rooms turned on as a feature). Is the labs turn on?

QOTO matrix server is focused on an all-in approach, and runs off some hefty servers to do this. For example we pull down all room history (this is rarely done) and have almost all extra features turned on.