No they don’t. Biometric only is the default for all IAP/in app subs.
Android is the only one who makes you enter a password to subscribe, because Google is incompetent.
Biometrics is offered as an alternative after the first time, but it is opt-in.
If you restore or transfer settings then it’ll ask for password first time and then honor biometric preference if that’s what you opted-in for on the other device.
No they don’t. Biometric only is the default for all IAP/in app subs.
Android is the only one who makes you enter a password to subscribe, because Google is incompetent.