FAQ

^_ shows up at the end of files

Make sure that conceal feature of Vim is enabled. macOS built-in Vim doesn't so you need to install vim with homebrew or so on. https://github.com/lambdalisue/fern.vim/issues/396#issuecomment-1073507080

How to display dot (.) files

Execute hidden:set action or hit ! to toggle.

How to filter nodes

Execute include or exclude action or hit fi or fe to enter a pattern (Vim's regular expression) to filter nodes.

How to get back from fern without performing actions (split window)

Use one of the following Vim's native mapping

Mapping	Description
<C-o>	Get back to a previous cursor position
<C-^> (<C-6>)	Jump to an alternative buffer

How to get back from fern without performing actions (drawer style)

Use one of the following Vim's native mapping

Mapping	Description
<C-w>p	Jump to the previous window
:q	Close the drawer (it automatically jumps to the previous window)

Or use -stay option to show fern drawer like

:Fern -drawer -stay .