As someone who posts a ton, I’ve noticed that a lot of people seem to check the top posts once a day or so. Posts can be slow to get engagement and traction, but the ones that become super active still seem to hit similar peaks as before (1-2k upvotes, hundreds of comments).
But yeah, people aren’t as actively engaged and commenting on everything all day like they used to on reddit. The framework is here, and I think if there were another big exodus, Lemmy is set up to be a great landing point.