What will Chrome do?
They already support this for things like FIDO hardware keys and other biometric hardware. It's also supported by Firefox.
Develop & give away a verifiable, open-source hardware & software solution for a silicon root of trust, with a focus on security through transparency[1]. Google will organize & make available the world's information on how to secure systems well.
Yes, this is intended for, among other uses, implementation of a FIDO2 universal 2-factor security key[2].
[2] https://github.com/lowRISC/opentitan/pull/1125/files#diff-6d...