xdg-desktop-portal works by exposing a series of D-Bus interfaces known as portals under a well-known name (org.freedesktop.portal.Desktop) and object path (/org/freedesktop/portal/desktop). The portal interfaces include APIs for file access, opening URIs, printing and others.
acquired package info from repodata DB: repodata/cf68b3f86214d90277d6ae027bf973ae4a24233f738f9859cfa2e6236b4980bf-primary.sqlite.bz2