Part of the problem may be the bugs on the Lemmy instances which have not been showing "hot" content correctly. This may be giving a false impression of an obsession over reddit as posts are stuck on the front page?

I've been browsing a few different communities and am finding things are active, they're just not reaching the default Lemmy front pages. Sorting by new or diving deeper into communities shows a lot of new content.

For example I'm currently browsing from Feddit.uk and this seems to have exploded into an active community in just a week; it's really heartening to seen. I've also seen different content when viewing from Kbin based instances like Kbin.Social or Fedia.io (including from Lemmy.world).