Your TFA requires a phone.
the need to use other time based 2FA without the need of a SMS capable phone to use. Many sites now uses 2FA and a single platform to build it around doesn't make sense.
please use a open system
Rather than requiring text messaging on a cell phone to verify accounts (which are already verified by email), have an option for land lines as well. I currently am locked out of being able to chat in some streamers chats because I can't verify with a cell phone because I can't afford a cell phone and I have a land line. Many people don't have cell phones because they can't afford them and to lock us out of chat simply because we can't afford to spend hundreds of dollars on a cell phone just isn't fair. Banks have a method to call whatever phone number you supply and give you a code to put in on the web site as an option for when texting isn't possible. Why can't Twitch do that? As it is, requiring verification of an account in good standing by 2 different methods is overkill anyway.
i lost my phone and needed to make a new authy account. idk my old number but i do know my email adress. so i changed the number hooked it up to my email adress thinking everything is fine. when i go to twitch to try to change the place it sends authy number codes for verification it wants to go straight to an sms number to the other phone i dont have.
also when it tells me to connect a new account (twitch) using the authy app
all it does is tell me to scan a qr code or use the code given to me , i didnt recieve either of these things. now im stuck with 2fa enabled and nothing i can do about it. theres gotta be a way to just get an email to undo this mess
Vote for the similar suggestion with the most votes: https://twitch.uservoice.com/forums/310228-account-management-e-g-login-connections-pass/suggestions/11498085-google-authentication-for-2-factor-authentication
This. There are plenty of people who don't have a phone or cannot install Authy for some reason or other. Twitch's own advice is to use Authy when "abroad" rather than SMS. If someone cannot install or use Authy, then they have no way to secure their account with 2FA.