But there were always some problems with copying, terminfo features, truecolors, composed unicode...

And recently I changed my mind about the usefulness of a multiplexer, after all only some remote machines were adapted to my workflow, most of the time I just used it locally and had to deal with multiplexer and terminal issues at the same time.

So I tried Kitty again, Kitty claims that multiplexers are a bad idea and that the terminal can do more and better, and it's right about that. Multiplexers should be replaced by advanced terminals.