I changed how i look at communities when i switched to lemmy. Instead of just looking at the part before the @ i look at the whole thing and consider that to be its name.
So instead of the gaming community its [email protected] and [email protected] as a whole.
Tl;dr: theyre different separate comminities and the name is for all intents and purposes the entire thing.
I suggest subscribing to all of them for the topics you want and slowly through exposure learning which ones youd like to keep.
Eve online for me too. Ill be logging in in a few minutes 😃
As for the social aspect, even though im in one the big alliances, if i just dont feel like it on any particular night then theres no need to be social. I can do my own thing.