Using 1Password to store your 2fA seed makes it single factor because your password and second factor are stored in the same place. This is not a good idea.
Yubikeys in U2F mode are better than any OTP because they protect you against phishing attacks. 1Password auto-filling arguably has this property too, but you should disable that sort of password manager behavior:
Yubikeys in U2F mode are better than any OTP because they protect you against phishing attacks. 1Password auto-filling arguably has this property too, but you should disable that sort of password manager behavior:
https://labs.detectify.com/2016/07/27/how-i-made-lastpass-gi...