This line of micros has been out for almost 2 years now but they only just took the 1.38mm^2 package out of pre-production.
I started a design last year of a tiny earring with ~102 addressable LEDs on it, a microphone, a bunch of supporting circuitry and this micro.
https://i.ibb.co/JWh57LLw/IMG-20260408-183807502-HDR.jpg
Unfortunately by the time I was ready to order the boards I found the tiny package was unobtanium and had to resort to the second smallest package which isn't very small. Frustration!
Not worth changing the design now...