Furthermore the risk exposure to using TOTO in 1pw is almost insignificant. You can configure your 1password account to require 2FA when setting up new devices,

Furthermore the risk exposure to using TOTO in 1pw is almost insignificant. You can configure your 1password account to require 2FA when setting up new devices, and unlike Google here the decryption requires manual knowledge not shared with the cloud. The only argument I can imagine is that if someone gets ahold of your phone it's either locked and they can unlock it or it's unlocked, in which case either your 1pw account and/or other TOTP apps are either locked or unlocked. In the worst case scenario where everything is unlocked, having a separate app is negligible. Besides, AFAIK Google Authenticator doesn't require additional unlock steps, unlike authy or 1password. You're better off worrying about how to avoid TOTP and securing 1password than about having TOTP codes stored alongside your passwords.