I never used twitter, so i had no expectations when I used Mastodon.
I was a little hesitant with Lemmy since I use reddit so much. I'm liking it way more than I thought!
It's obviously less content, but as far ss my day-to-day use, i don't miss much. Hardest part was finding different communities to sub to, but there are enough directory sites around to help out with that.
It has less content, but enough for me to scratch that itch, and it's not necessarily a bad thing that it's not an infinite stream of addiction. There's definitely an onboarding and discovery problem, but I think it's a solvable problem.