Can't Raise player via MPRIS

Neither by the actual MPRIS raise method nor by activate_full (How most MPRIS Clients actually raise players to prevent focus stealing)

The only log message I get is:
Failed to start flatpak-com.spotify.Client-25904.scope.

Every time I start Spotify.

The report names no source file, test, or entry point; begin by reproducing the Spotify Flatpak startup and examining the MPRIS raise and activate_full paths alongside the reported scope failure. Done means Spotify can be raised through both MPRIS methods without the startup failure.

Written by the indexing model from the issue text.