The only issues I've had with it is that sometimes it's hot keys conflict with vim, but you can easily turn it temporarily off with ctrl+ g.
If you're already used to tmux I'm not sure you would benefit much from changing, but it definitely has a better out of the box with pane hints, names, and more user friendly hot keys.
:term to open a terminal in a new vim window (or :vert term)
Standard window movements apply (by default the window prefix is Ctrl-W), most important are: Ctrl-W,{hjkl} to switch between windows, Ctrl-W,{<>+-} to resize windows, Ctrl-W,{HJKL} to move windows to edges, Ctrl-W,{qc} to (force) close windows
Enter normal mode of a terminal buffer with Ctrl-W,N: now you can perform vim motions and scroll the output
Enter insert mode with i and you can type into the terminal again
In insert mode: Ctrl-W "x to paste register x, Ctrl-W . to send a literal Ctrl-W. If too annoying, you can change the window prefix of vim
This goes for vim, neovim also has a terminal mode but it works differently I think
I see everyone complaining about this but as a new tmux user as of a few months ago, I had an LLM assist me with configuring it how I wished and it did a bang-up job. Stuff like using “-“ to split horizontal and “|” to split vertical so you don’t even have to remember it…
i want tmux for three things:
1. easy splits
2. easy scrollback
3. being able to restart a session if my terminal dies
given all that, tmux works exactly as expected.
what are all these "significantly better ui and overall ux"?
For them, there's as much variety of desires as for any other window manager, and there are tons of those. But terminal ones are usually significantly easier to configure in wild ways due to having fewer (but more powerful) knobs to tweak, so a fair number choose just one and configure the heck out of it.
I know I'd get used to them, but the key combos used by tmux seem very odd choices, even to someone who used to code on a real glass tty!