> There doesn't seem to be a truly adfree option.

We're still talking about The Guardian?

They advertise a $20 (AUD) per month "All Access Digital" plan here - https://support.theguardian.com/au/contribute?pre-auth-ref=h... - which they say gives you access to "Ad-free reading on all your devices"

But that might be through their app rather than the browser. Hard to tell.