My 'favorite' is SMS and other proprietary app-based 2-factor auth. My phone broke while I was traveling through Laos. I was going to be returning in a couple

My 'favorite' is SMS and other proprietary app-based 2-factor auth. My phone broke while I was traveling through Laos. I was going to be returning in a couple days, I could speak the language well enough, so I didn't have any immediate need to get a new phone (and the pickings were way too slim in a country such as Laos). What I thought would be a good idea was to purchase a new device online to be shipped to my apartment on my return. I tried to log into my online shopping account but most payments are always locked behind 2FA with SMS being the only option. Bank transfers worked too, but that as well was locked behind SMS. So in order to buy a new phone, I needed a new phone to buy a new phone. Almost nothing in the country support TOTP or WebAuthn, etc.. and the times they do they just call it "Google Authenticator" encouraging users give those keys to Google as well instead of supporting FOSS TOTP. At the same time I got my income via TransferWise, and their 2FA is some proprietary BS in their app instead of generic TOTP that I can back up on my laptop. So I couldn't get extra money to my foreign account to pay for it. A few months later I needed to use PayPal and was locked out of my account on similar grounds. My foreign account I didn't have my old phone number because it's pretty customary to rotate numbers on prepaid plans here, and my US account was using Google Voice (because it's tedious to maintain a US SIM card for the 2 times a year I need it) and they removed SMS support for Voice while not giving an alternative for authentication. The best part is that to get support from PayPal about authentication you needed to first authenticate to message support. Needless to say, I straight-up refuse to use PayPal now and direct message vendors about supporting an alternative (either widely or for this exception).