You have to hit an API endpoint to read it. It’s basically just a GET request to /api/v1/pleroma/accounts/:id/scrobbles. Interestingly enough, they do federate correctly. Case in point:
https://gleasonator.com/api/v1/pleroma/accounts/9v5bw7hEGBPc9nrpzc/scrobbles is min on your instance.
I’ve been debating making my own FE from scratch because I have my own ideas about how things ought to be, and I don’t think the BE is terribly lacking at this time.