The behavior seems to be part of vim's netrw plugin. Aside from the obvious `:help netrw` you may find `:help standard-plugin-list` interesting. (netrw has alw

The behavior seems to be part of vim's netrw plugin. Aside from the obvious `:help netrw` you may find `:help standard-plugin-list` interesting. (netrw has always been enabled-by-default for me, but I've spent most of my time on desktop-oriented Linux distros.)