It works with LG G8s and Samsung Galaxy S20 FE 5G

As I understand it, USB-C works everywhere where there is no longer a jack socket on the phone and USB-C is the only connection (for both charging and audio listening).

The cable works with Fairphone 4. It does not work with Fairphone 3. However, I did not practice for long because there is still a headphone jack here. No further tests were carried out.