@jonas Oh, btw! I forgot. There’s an Android scrobbler called Pano Scrobbler that manages to send feedback without any MBIDs on the metadata (it works using my own tracks). I wonder how they do that. 🤔
It looks like the client searches for the MBIDs when not present. See lines 158-159 here:
I’m not sure, though. But maybe that method could be used by Strawberry? 👀