It has an option to always show what instance communities and users originate from.
If the concept of federation is confusing or daunting why would having it be more visible help? Genuine question.
Sign up, browse stuff, comment on stuff, curate your feed by subbing, all the other details are just noise.
Caveat: Unless you're on a small instance that isn't aware of the communities you might want. But let's face it, if the concept of federation is confusing you you probably didn't join some micro instance hosted by your mate Joe.