Which part do you hate?
Discussion
Mainly copying. Need to copy to clipboard (systemwide) but since now I found no method that works for me.
But there is a chance that it is just me :D
Nah, the scrollback buffer is pretty bad. It's pretty much the same as Screen, no improvement. I generally select and middle click paste rather than copy and paste.
You could give wezterm a try, it has a mux server. I haven't used it for multiplexing though, mostly because the servers I log into are a bit sensitive.
Locally I ditched tmux for kitty for most things. Don't get multiplexing, but otherwise a fantastic terminal. I still have one tmux session running for notes and admin stuff.
Just kicking in open doors, but have you tried this? https://www.rockyourcode.com/copy-and-paste-in-tmux/
Working on a server with xclip not installed and where a cannot install anything.
But you got me thinking if maybe xsel would work somehow instead