Other games have lots of wacky skins and stuff but the Counter Strike games never had that and hopefully never will. Some of the unofficial servers are pretty wacky which is fine as they are unofficial.
I'd argue that the only reason Steam survived when it came out was because Valve forced people to use to play Counter-Strike. They've done better in the past 15 years though, I'll give them that!
I'm not even a youtuber and make these to keep myself accountable, so it's not that fun to watch, but it might be in the direction of your query:
https://www.youtube.com/watch?v=d9YCkWjD7WQ&list=PLEWSTtjNAw...
From what I've gathered there's some work being done on new engine designs within the FCAS program, but I have no idea how it's going.
AI is emerging as a possible solution to this decades old problem.