It's the same with reddit. Sure, I do appreciate some small gaming communities that I can't find anywhere else, but it's not what the site cares about, nor what many people see when they go to reddit.com. You need to search for those communities,and they aren't guaranteed to be good. Or active for that matter.
There are still active forums for most topics, and site search works just as well. What changes is a return to the old world where you can't put in one site to get it all anymore.
I personally desire that. You'd think all these fallouts of various social media would be a grim reminder of that cost of convenience, but alas.
So inevitably, people who like reddit want another reddit, and they will fall back into the same pitfalls if/when a better replacement comes.
It's easy to see this sort of access to information disappearing, and it's also easy to imagine that even if it didn't die now, it would soon be destroyed by large-scale usage of AI. I think the internet very briefly put a lot of power in the hands of users, but the pendulum is swinging back hard.