Meetup was fine 10+ years ago, but it's my go-to example of enshittification today. It feels like they're actively trying to kill it with every new change to the app / web experience. But despite that there are some good groups.
I still host board game events on Meetup, although I'm hoping to switch to my open source alternative soon. I think the other commercial options such as Discord and Facebook are worse, and people have gotten used to Meetup.