If there is a /c/Serbia in each instance then yes it's normal to see separate sets of content. While they may be about the same topic, they are separate communities on different instances.
No, I have to disagree. That would lead to echo chambers worse than even the worst of subs on Reddit.
Chivalry 2. I always saw videos about it and thought I would love it. Had a great 4-5 months, but it's gotten pretty stale recently.
I've seen a surprising amount of people carrying around a Fold 3 where I work.