It’s still active – save the communities that got kneecapped by mods during the revolt (and sadly, most of those are now Discord-based rather than having any appreciable activity here).
The activity there now is a lot… dumber. Like much of the internet, the ratio of real people to braindead bots on Reddit is a lot different than a few years ago.
The fact that the Russian government came out this fast and said they need a version with their own commits is, perhaps, telling.