Before you ask, the accent varies based on diet.
I made accounts on a few different ones to check them all out but I started in kbin.social while it was still a thing (the admin had some health issues I heard, hope he’s doing ok). Kbin was the predecessor to Mbin, which got picked up by some other devs thankfully.
Yes.
Make your own! I started !micromobility@lemmy.world because there wasn’t one and now it’s got thousands of subscribers and is more active than r/micromobility (which died activity-wise right around the time of the API fiasco, surely a coincidence).
Welcome!
Just remember Lemmy is only part of a larger network called the Fediverse. If you find you don’t really like it, there are other alternatives like Mbin and PieFed. They’re all pretty good I think, but Mbin is probably my personal favorite. There are also custom lemmy interfaces like old.lemmy.world, as well as lots of different mobile clients.
All the different instances and platforms can tall talk to each other, so you can subscribe to communities you like from any of them, as long as they are connected (aka federated). So somebody on https://kbin.earth/ (an Mbin instance) could subscribe to !micromobility@lemmy.world (a community on a Lemmy instance) and post there, browse, etc. even though they’re different websites.
You can sign up for any instance you want and if you hate them all, you can even make your very own.
More features and I just prefer the aesthetic of the interface. I use Interstellar on Android but I would describe the mobile interface as very usable so the app isn’t really necessary.