Seems like only available in certain locations.

You can play with the `gl` query parameter in the URL. Yours is for Italy ("it"). It's available in other continental Europe locations like: de, fr, be, es, pt, at, cz, pl. While not yet released for majority English speaking countries (us, ca, uk, au, nz) with the exception of Ireland (ie).

I don't have any insider information even though my employer is Meta. I learned about this release from HN.

I'm guessing that the territories served by Meta Platforms Ireland Ltd have had the publication approved but the ones served by Meta Platforms, Inc haven't...