Not asking for tech support here, just wondering if in theory it would be possible to create a plug-in or even a complete browser that blocks ads in a way that’s impossible to detect. One model that comes to mind is a quarantined / containerized non-blocking virtual browser which queries the web server directly, then the UX filters the content from that container and presents it to the user ad-free. As far as the web server can tell, the containerized browser is just vanilla Chromium.
What you’re saying makes sense about detection. I think my theoretical model might work around some of those, but then there are the user behaviors you’re talking about that could still give it away.
I’m having trouble finding it again, but I remember seeing some articles a few weeks / months ago that Google wants to start using some kind of “3rd party authentication” service to make sure you are using an approved and unmodified browser. They want to roll this thing out to as many sites as they can. Of course they will pretend it’s for your security / protection but it’s really to block add-ons / extensions that they don’t like.