Software not using Dolphin open/save file picker

This seems to work for some programs (some flatpaks but not all)

sudo vim /etc/environment

GTK_USE_PORTAL=1
GTK_DEBUG=portals
XDG_CURRENT_DESKTOP=KDE

For other programs layering them with rpm-ostree works (e.g. libreoffice). This doesn't work with every program either (e.g. audacity and filezilla still display gtk file dialog even when installing the rpm, most likely they don't support using portal for file picker)