The developers seem to really be promoting their deeper support for tmux integration. I'm probably what you'd call a tmux noob, but after a few months of using it on its own with minimal key remappings, I feel like my efficiency with the keyboard-only UI has already surpassed any gains I might get from sticking tmux integration with mouse support and tmux shortcuts. It's not that I'm opposed to this integration, but that I don't think it goes deep enough.
Ideally, I think tmux would be inseparably integrated with the terminal emulator, with no shims to add complexity to the UI. For instance, it irks me that the workflow for integrating iTerm with tmux is running `tmux -CC` and then leaving that window open in the background for as long as it runs. I'm bothered by the fact that I have to run a command to begin the integration in the first place. Wouldn't it be better to check a box in preferences that says "Integrate with tmux if tmux is installed" and then from then on make sure that the tmux concepts of sessions, windows, and panes deeply align with corresponding concepts with iTerm?
Ideally, I think tmux would be inseparably integrated with the terminal emulator, with no shims to add complexity to the UI. For instance, it irks me that the workflow for integrating iTerm with tmux is running `tmux -CC` and then leaving that window open in the background for as long as it runs. I'm bothered by the fact that I have to run a command to begin the integration in the first place. Wouldn't it be better to check a box in preferences that says "Integrate with tmux if tmux is installed" and then from then on make sure that the tmux concepts of sessions, windows, and panes deeply align with corresponding concepts with iTerm?