How to scrobble in Google-Play-Music-Desktop-Player-UNOFFICIAL

Tags: #<Tag:0x00007f839a565278>

Thought I was not this technical newbie but it turns out I am. I am trying to scrobble with:

which supports listenbrainz in their settings, asking me to enter my user token, and saying
it could be found in
I don’t remember but it seems I did find a number there and fill it in before a few months back.
But today I just noticed my whole listening data on listenbrainz is all empty.
Any guide on how to get the number to fill in that setting so it scrobbles?

My bad. I went to musicbrainz to look for my listens. It was at listenbrainz.
All good. No problem.