GDbus service not found but exists

I tried running Vinegar by flatpak run org.vinegarhq.Vinegar but it spits out the error when I click "login with browser" (should launch browser with login url)

WINE Failed to call portal: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.portal.Desktop was not provided by any .service files

but it is provided by a .service file! /usr/share/dbus-1/services/org.freedesktop.portal.Desktop.service

[D-BUS Service]
Name=org.freedesktop.portal.Desktop
Exec=/usr/lib/xdg-desktop-portal
SystemdService=xdg-desktop-portal.service
AssumedAppArmorLabel=unconfined

I am on Artix Linux Plasma with both xdg-desktop-portal and xdg-desktop-portal-kde installed.