Most non-systemd distributions will create a dbus service to make file transfers work. I am not sure why Artix does not do this I am posting here how to make this work.
It is quite simple, one only has to create a single file in /usr/share/dbus-1/services/ named org.bluez.obex.service with the below content.
[D-BUS Service]
Name=org.bluez.obex
Exec=/usr/lib/bluetooth/obexd
A less ideal solution is to add it to your desktop's autostart applications.
Looking into, I suspect something changed upstream, so it's not being installed like it should be.
Edit: Pushed update to fix so once mirrors sync it should be good