I have used something other than GNOME for more than a decade. The GNOME devs still control Gtk3 and the Gtk3 file chooser is used by many DE and applications.

I have used something other than GNOME for more than a decade. The GNOME devs still control Gtk3 and the Gtk3 file chooser is used by many DE and applications. Heck, I can't even get my KDE/Qt applications to use their native file chooser under Debian 10 w/MATE. So even using KDE applications is no escape.