My only issue with kitty and tmux is that I always have to copy over my terminfo files manually or else I get a 'xterm-kitty': unknown terminal type error.

I've done the same, but in case you didn't know Kitty can do that automatically (though it does a bit more that you may or may not want it to do)

https://sw.kovidgoyal.net/kitty/kittens/ssh/

Kitty is really the only superior editor beyond ghostty terminal iterm weztwrm alacritty foot and others and the only one worth recommending.

No it's not. The author smuggles opt-out telemetry and is suspiciously abrasive towards users pointing this out.

https://github.com/kovidgoyal/kitty/pull/3544

No, he’s not. Calling this telemetry is a stretch and that’s his style on everything he disagrees with (unfortunately).

It would be a stretch if it was opt-out, but as it is, every installation of Kitty phones home by default. That is the exact equivalent of telemetry.

His "style" compounds on that by making him seem untrustworthy.