As I understand it the federation protocol is copying all the data from instance to instance. I think data is probably going to be the most taxing part of running a social media site, but since all the data is replicated, there wont be much load sharing there. Each instance will be taking care of the cpu/load requirements of rendering/serving the pages for their users, so there is some scaling benefits there to distribution. Anyway, I’m also still learning as well! I think we all are lol

It’ll get better over time as things settle in. Right now reddit is just the hottest topic on the block

Load would not be distributed though right? Because all the user data / activity would just be copied to every federating instance. Fediverse is more about redundancy & lack of centralized control, rather than load balancing.