From the article, it seems google-agnostic: So they’ve developed a (as yet unnamed) protocol for device-based authentication that they say is independent of Go

From the article, it seems google-agnostic: So they’ve developed a (as yet unnamed) protocol for device-based authentication that they say is independent of Google, requires no special software to work — aside from a web browser that supports the login standard — and which prevents web sites from using this technology to track users.