I had this for a while, I suspect a lot if users are like me (and I assume you) in that the functionality they need from tmux is more or less just tabs and splits (tmux does more than this, but I don't tend to use those features) which kitty replaces pretty nicely.

Since I work across actual Linux and WSL I really appreciate having something that's terminal agnostic like tmux since it means I don't have to have a separate set up when kitty isn't available.