I appreciate that tmux has theoretical advantages over screen, but man does the implementation suck. On Mac it still seems like there's no way to copy text if you have mouse mode on (at least in code-server).
Yeah, that really sucks. I couldn’t quite believe what was the case and spent many hours trying to debug it.
Often, holding down "Shift" while making mouse selections will "break through" and let you get at the O.S. copy/paste/selection mechanism. Highly terminal dependent, though!
Maybe you could try this - https://github.com/tmux-plugins/tmux-yank
I was wondering about tmux vs screen (+splitvt) but didn’t want to ask. What are the advantages?
Select copies, what do you mean?