[ratww]

An example:

If you're using it to display a page (say: React Router), then it's essential functionality.

If you're using the URL to propagate a unique hash between pages that is used to identify the user for marketing purposes, then it requires consent.

[ephimetheus]

Ah, this would make sense. They mean if I put data in the url and retrieve it from there. www.example.com/search?q=abcd would be fine in that interpretation.