One feature that I really like on my Mac was iTerm2's persistence (tabs and outputs preserved across reboots). This is particularly important where I live because we have frequent electric outages.
Cool I didn’t know ITerm2 was persistent across reboots. I like it because it supports inline matplotlib plots both locally and remote SSH connections.
I now have something on Tmux with https://github.com/tmux-plugins/tmux-continuum .
That's one of the best things about Tmux: there's generally a way to get it to do what you need it to do. Or something close enough.