I'm looking on v3 right now and I don't see a way to do it from the interface. Not sure if that is because it hasn't been implemented or isn't going to be. Using your link it gives this on v3:
https://www.chess.com/leaderboard/daily?sortby=total_game_count
So, if the developers just haven't added sort options, then the leaderboard pages are where you will eventually find them.
Someone showed me this method of sorting the players on this site by the number of games they've completed. Here's a link:
https://www.chess.com/echess/players?sortby=total_game_count
Can anyone show me how to sort players like this without having to click on the link the guy gave me? I'd imagine there's also other ways to sort the players that I'm missing out on... and maybe it's something I have to be on V3 for. But this stemmed from wanting to find out the players on this site with the most concurrent games, and this surely intrigued me.