Relai, Bity and Bittr are NOT KYC-free. They link the purchased bitcoins to your identity via your bank IBANs. If the law will require, those companies will disclose all the trade data and identities.
Bisq and Robosats are much better options because your identity via your IBAN is disclosed only to your private and personal trade partner.
Azteco vouchers is a good option if purchased with CASH or other cash equivalents.
This is an interesting point, it's true they have the IBAN, and IBAN is connected to KYC, but it also true that it doesn't need to be your IBAN, they are not required a picture of you holding your passport signing your name with the blood of your firstborn. Let's call it "soft-KYC" which depending on your threat model might be acceptable. Surely ATMs, face-to-face and everything involving cash is preferable, but again depending on your threat model you might want to go to the meetup with sunglasses and fake beard as also your face can be linked to your identity via face-recognition software. There's always a trade-off.
You are right, of course, it’s not a full blown KYC. Soft KYC is a good term 😀
