Is it things that exist in public but which don't have clear attribution? B/c in 2020 there were the "monoliths", which were pretty cool. Or, you know, Banksy still exists. Or @fog_karla / @karlthefog for that matter.
Is it playful, non-scalable experiences? There's Improv Everywhere. My city has a number of curb-side bird-house sized "libraries". There's a guy who keeps doing extremely long walks in the UK in his speedo for charity but presumably also to make people smile.
There are more than 7.5B people on the planet and plenty of them are doing weird fun creative things. Just maybe fewer of them revolving around 80s soft drinks.