Bitchat, Nostr Client, and very important, White Noise chat! You can also get a sim card (never tried it myself yet) via https://lnvpn.net/ without KYC and withouth a number. Somebody correct me if I´m wrong, but that sounds pretty good to me.

100% agree nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq8wn0jd3p7n6u3y7mc46p0hpx3cmtv9k3mu82rc0lhkg3rdyf590sm8a73n / nostr:nprofile1qythwumn8ghj7ct59ehx7um5wfmk7untwvhxxmmdqyxhwumn8ghj7mn0wvhxcmmvqqs9etvzezvwuespxugeghtg0a7e2j0kgksprpr8mt30tcn5ckvddlcemexa7 : Burner phone, Bitchat and perh...

Isn't that why esims are mandated everywhere?

Just use a data only eSIM and you don't have to provide any personal information. Doesn't matter which country.

In Australia need a driver's licence to set up a phone number. It's been this way for like 15 years already.