[devnullbrain]

!pwd works for me in nvim, I use it every day

[kps]

Try something that uses input, e.g. a pager (`:!git log`), or a password (`:!sudo something`), or `:!top`, or something with even the simplest formatted output (`:!watch -n1 lsusb`).

[kzrdude]

!git log is a good example. It works differently in vim and neovim.