There used to be a thing called "Most Popular" gallery that collected all public chosen photos, like "likes".
Link on everyone's site: /popular
Gallery still exists but it seems they are now just adding recently uploaded photos.
Link to my site. https://www.photosbyat.com/popular/
About half(?) way thru people chosen photos ends and Smug chosen starts.
This was basically discontinued but still shows.
Smug said they would get back to it but nothing has happened
Smugmug's gallery still exists also.https://www.smugmug.com/popular/.