Multi Domain Tracking & anonymize_ip: true

[vivekshotti]

Is the anonymize_ip: true a necessary parameter to track multiple domains?
I was wondering if we could simply do this to track two domains:

app.use(
  VueGtag,
  {
    includes: [{ id: "G-id1" }],
    config: { id: "G-id2" },
  },
  router
);