Debian & apt-cacher-ng: non-redirected S3 bucket URLs?

Good day,
I have read Graylog repository with apt-cacher-ng gets a 406 Not Acceptable response 's “solution”, but in my case, the apt-cacher-ng admin is not very happy to insert the passthrough as it needs to be inserted in multiple places, and it doesn’t seem like a static URL.

What I did noticed is that the repo is hosted behind some S3 authentication URL strings, and the question comes up, why not just an Object Store that doesn’t need an elaborate authentication parameters in the URI to redirect to?