I wonder if the same trend is happening for younger age groups as well. I was surprised at my two nephews scrolling X yesterday reading memes after dinner. They're 14 and 16 and I guess deeply in the "gamers" culture? They shared some of them with me and I wasn't into the edge-lord stuff, but they insist that it's just ironic usage.
Much like every generation, I'm likely just not hip enough to understand the youth.