xdg-desktop-portal-gnome from home:mantarimay project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:mantarimay/openSUSE_Tumbleweed/home:mantarimay.repo zypper refresh zypper install xdg-desktop-portal-gnome