Can you use OneAuth MFA to log into Vault?

I may be missing an obvious reason why this is a bad idea, but can you setup Vault so you log into it using OneAuth's MFA? It seems odd to be using a text password for Vault but I don't understand how to change it to MFA.

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Zoho Vault: A look at what's new for iOS, iPadOS, and macOS
Hi everyone, At Zoho Vault, we constantly aim to improve your security experience. Based on both internal and external feedback, we have recently rolled out updates across our iOS, iPadOS, and support for macOS platforms. Introducing the desktop app for
iOS 12 update: Introducing autofill passwords and Siri Shortcuts in Zoho Vault
With this iOS 12 release, Zoho Vault users can now autofill usernames and passwords on Safari and other third-party apps. Users can enjoy a seamless login experience to their everyday apps without compromising security and also access passwords stored in Zoho vault with Siri Shortcuts by adding personalized phrases. How to enable autofill password on your iOS device? First, you need to update your device to iOS 12. Apple recommends you to take a backup before you update your device to the latest