They're completely unrecognisable as memes since they increasingly don't use exploitables, but they're still out there. r/memes is very much around and well, if you want to see what's currently a thing sort by top of this year/month/week
If it's that easy to miss then the culture has comparatively died. Memes are still around, but there was a period where they were everywhere. Like the gas station would have a bad luck Brian meme if the bathroom was out of order. You walked in Kohls and there were three different variations of "Know Your Meme" type games on an end cap. The average person would see and hear multiple memes daily in the course of everyday non-internet related activities, then they fell way off. 6-7 was the meme culture dead cat bounce.
The kids are memeing heavily with AI. I don't understand it, but then again, my parents wouldn't have understood rage comics or other memes from back in the day.
Really not sure what GP is referring to - lots of humor still going around - but I can probably guess.