The SMS 2FA is great point! Until now I was able to not hand out my number to bigtech, eg. for Chatgpt I bought an new SIM card with a 5 EUR deposit that I just used for the registration process, but those cards expire after a couple of months if you don't use them. Guess I have to give out cellphone number after all...
Printing out the TOTP seed and hiding the paper in multiple locations sounds somewhat wrong to me. Maybe the TOTP seed will be my new, even longer password to remember j/k
Hmm, but if you would cryptographically hide it in publicly available data, it would be easy to recover.
Thanks for the input!