You think there are still redditors around?
I think it’s just troll farms and bots. Every once in a while someone stumbles into the site and says something. THEN there is a whirlwind of answers/speculations/theories/lies.
I guess it depends on where you look. All the subs I've been visiting where people actually hang out, rather than just a handful of karma farmers spamming, are still flourishing*, so I never fully switched to Lemmy, but use both 🤷 Reddit subs have a magnitude or two more people, so imho they're better for news, memes and technical advice, while for the past couple years Lemmy feels better for insightful conversations.
* my main subs are for specific games and apps, a few countries/regions, and r/BestofRedditorUpdates, so ymmv