The term server used to refer to a computer, running something like a web page. People connect to that specific server.

In discord, a server is just a name for a community, a label for your group. You can change channels, add new voice chats, change the icon, set up rules, bots to enforce rules, roles, pings for those roles, etc.

But at the end of the day those files are stored with discord, on discord’s “servers” as in traditional server infrastructure. If discord decides all servers must serve a number of “sponsored posts” in general chat, for instance, you can’t just not comply. Your server is part of their infrastructure. They can do what they want when they want. If discord decides to go paid only, you can’t keep your server free, as another example. You cannot self host the actual files or software that makes up your discord server.

Most of the time, 60. But it depends.

Competitive FPS/action games I want 120, story games with FPS 60, anything turn based or slow paced is probably fine at 30 or 40. It also depends on a lot of other factors. On my handheld (steam deck like) I aim for 30 or 40, but my main PC always shoots for 60 or higher.

That and I usually tune my settings so I get a bit more than 60, then lock the framerate to reduce stutter.