Honestly filepickers are kinda cringe, no matter what display mode it uses. I just have a shortcut that basically does find ~ | dmenu | xargs dragon-drop (well, the script itself is a little more complicated, but that's the gist of it) so I can just search for files and drop them into the filepicker directly. Hopefully once everything switches to xdg-portal, someone can make a "filepicker" implementation that just does something like that directly.