According to https://twofactorauth.org/ Fidelity Investments now supports 2FA, which is true, but I don't think the software token can be added to 1Password. You can either add SMS or you have to use the Symantec VIP Access app, which requires you to call Fidelity and provide them with your Credential ID (a unique identifier within the Symantec app).
Is there a way to turn off Watchtower for this one account or for 1Password to modify how it identifies 2FA capable accounts when ingesting data from twofactorauth.org?
1Password Version: 7.4.4
Extension Version: Not Provided
OS Version: iOS 13.3.1
Sync Type: iCloud