I really dislike 2FA when it is linked to a phone number. There were so many situations where 2FA made huge troubles to me, e.g. I traveled to Asia before Covid, lost my phone. No problem, it is just hardware, I got a cheap 100 Euro Xiaomi phone around the corner and a local SIM card. But I could not login to my Gmail account to get the booking confirmations + addresses of hotels + flight ticket confirmations. It was pain, pure pain.

Apple forces me to instal 2FA, but I just don't want. I cannot use a third party app or tool but must use my phone number. This is pure pain to me, because I want to use things like Apple Cash or AirPlay from the phone to the AppleTV.

Is there a better solution? I dont know. But 2FA, especially when linked to a phone number, is terrible - at least from my usability point of view.