Since years the recursive search of the gtk file picker is driving me nuts each
time I have to use it (fortunately only a very few programs use it). As it
seems there is no option which lets the user choose what he prefers...
At least archlinux does have a package (patch?) which enables the old typeahead
search (only in the same folder) again.

https://aur.archlinux.org/packages/gtk3-typeahead/

Would there be any chance that could be incorporated into debian?