When using YubiKey for 1password on a PC, am I forced to use it on my cell phone to access 1password

Hi @RobertHana, thanks for following up with us. Just to clarify, after setting up 2FA for a 1Password account, the security key or TOTP will be required every where you use 1Password to access your synced information. If you sign in somewhere new, your account password, Secret Key and 2FA would be required for the first sign in. If a 1Password app is reset or deauthorized the 2FA (as well as the password and Secret Key) would be required again to sign in. If a device where you use 1Password is every lost or stolen, we recommend changing your Secret Key and deauthorizing the device to help prevent malicious access.