By the way, the existing Italian lists are all already public (except for the CSAM lists which require a decryption key), that hasn't bothered anyone given that right now, blocks are only made at a DNS level, completely ignoring the existence of DoH :P
(Well actually not completely ignoring DoH, there's another not-yet-applied Italian law that requires ISPs to completely ban DoH, but it has kind of gone under the radar since it's essentially inapplicable without DPI (and even then, the upcoming ECH standard will make it practically impossible to block DoH providers that use ECH))