I suppose it depends on what you mean by "this place" as the Fediverse can make that a trickier question.

On feddit.uk, the instance you are registered with and the host of this community (and as an Admin I may be biased), it's relatively relaxed. I signed up here because I figured I'd get a good mix of UK news and posts with a UK slant (on the English-language Internet things often default to a US perspective), as well as folks with a more... British sense of humour and that's pretty much worked out.

On Reddit they tend to consider subs to be the Mods personal fiefdom (unless they shut them down in protest) and that concept has carried over to the way some instances run things (it's often difficult to replace Mods on some communities even if they've been MIA for a while). However, I've been part of (and often ended up helping run) online communities since Usenet and my take is that it's everyone's Instance, the Mods and Admins are just here to make sure everything runs smoothly and the lights stay on. I'm happy to let Mods deal with the reports on their communities (as most are that posts and comments don't fit the remit of the community) but if a Mod is inactive for a while or there is evidence of power-tripping (the latter hasn't happened yet) then they will get replaced.

Further afield in the Lemmyverse, you'll find a range of instances that cover different topics or serve different communities and the way things are run can vary from orderly to pretty freewheeling and chaotic. You'll pick all that up as you go along but don't be afraid to block instances. Otherwise the best way to organise your reading is a mix of Local and Subscribed. On feddit.uk, Local is pretty manageable, on larger instances it can be a firehose of content (with a lot of Linux memes and shitposting). Subscribed let's you pick what content from around the Threadiverse you want to see. However, don't expect the same breadth and depth of communities as Reddit has and, a lot of the time, you can't just be a passive consumer of content (or you can but don't complain about it) as there aren't enough people here yet to populate niche communities with a steady flow of interesting material. So get stuck in, it'll be a lot more enjoyable for everyone.

And if you have any questions feel free to ask.