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.