This has been bugging me since I started playing with beowulf at the
beginning of last year. When I want to open a file in an application, the
file chooser lists all the contents in alphabetical order, with files and
directories mixed in together.

This makes it take longer for me to find what I want, especially if I have
to drill down through several directories.

I found the fix for it here:
https://fransdejonge.com/2018/05/sort-folders-before-files-in-the-gtk3-filechooser/

It took me a minute to figure out the picture. When you open the file
chooser, right-click on any item in it to get the popup menu with the
checkboxes. Check the appropriate box.

Cheers,
fsmithred