Community Meta Discussion

So I just joined from the DNDmemes reddit and love what is going on, but am new to Lemmy and it is not obvious to find out that this is even an instance of Lemmy.

I moved over to Mastodon from Twitter last year and saw how hard it was for many to understand what was going on, with the many instances Can we have a pinned post to explain what this exactly is and how people can access it from an app on their phones?