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.