This imho is what most people[1][2] would expect to be the default in
modern times; considering this also cannot be "easily" configured
outside of the cli utilities gsettings or dconf it should just be the
default.
[1] https://superuser.com/questions/843615/gtk-3-14-file-chooser-folders-first
[2] https://askubuntu.com/questions/789505/can-i-choose-to-not-sort-directories-before-files-on-file-open-dialogs
</description>
</key>
<key type="b" name="sort-directories-first">
- <default>false</default>
+ <default>true</default>
<summary>Show folders first</summary>
<description>
If set to true, then folders are shown before files in the list.