Can't trash files from Flatpak
Because we gave access to gvfs on D-Bus, trashing will try to trash "by hand" instead of using the portal.
(totem:2): Totem-WARNING **: 01:13:41.878: Couldn't remove item 'Introducing GNOME 3.30 “Almería”.mp4' (101399): Unable to trash file /home/hadess/Videos/Introducing GNOME 3.30 “Almería”.mp4 across filesystem boundaries
It should work already though.