Myself, I still see reddit when I'm googling for something (e.g., I used it yesterday to find where to go next in a game I was playing, as I was stuck and it seems many people got stuck in the same spot). Reddit is useful as an archive of information in that way and Lemmy isn't active or searchable enough for that yet (plus I didn't want to ask a question and wait -- I wanted to get my answer immediately).

As well as to read discussions of stuff like the ending of a video game or movie. Again mostly because reddit has dozens of threads for basically every single video game, movie, TV, etc (including those that predate Lemmy). I love reading user discussion after I finish something. But I am trying to start conversations about that here, too. If anyone wants to discuss Horizon Burning Shores or Final Fantasy XVI, I made threads about them (which... I was gonna link to, but I can't find -- the posts section of my profile is empty and I can't easily find them when searching...).

EDIT: the FFXVI post is https://lemm.ee/comment/940061