Earlier quoted context omitted.
You might find Privacy Pass of interest then - https://help.kagi.com/kagi/privacy/privacy-pass.html It should be out in the next day or so.
Awesome. I didn't see much detail about how it works in the page. Something like this would be useful for other sites as well. Is this using an existing technology? (Firefox extension is not found. It's probably not in the store yet. Can't find with search either.)
The standard has also been published as RFC9578: https://www.rfc-editor.org/rfc/rfc9578.html