Yeah, I also made a Mastodon account during that big Twitter exodus a few months back, and admittedly haven’t used it that much either for the same reasons. I just never really have that many unprompted/creative things to say, which is kinda the primary use case for the Twitter/Mastodon genre of social media.
Reddit/Lemmy on the other hand is way more about the discussion, which is both way more interesting to consume as media and also way easier for me to get involved in.
I’ve also found this to be true with Julia devs
Source: am Julia dev