Hey!
I’m at the same stage as you, with my ‘documents being processed’ on the 19th of April
I got a text saying I’m in the interview stage on the 31st of May so I would guess you will get that text too around 15th June?? (As an estimate)
I think it won’t be too long after interview you receieve your passport but, not sure yet!! Can update you if you wish
🙂