People have showed up here on Lemmy reporting having been banned from Reddit (and for bullshit reasons) left and right now-a-days.

It's true Lemmy isn't as active as Reddit, and I definitely miss some Reddit communities I used to be part of. (I wasn't banned. I quit more on a "boycott" basis.) But Lemmy has its own strengths.

I'd recommend using the "new" sort and the "all" filter frequently. It's a good way to find communities. New/all has been most of how I browse Lemmy for a long time now.