https://w3ctag.github.io/security-questionnaire/#underlying-platform-data says the "PDF viewer plugin objects list almost never changes", but in fact the specification gives it a fixed value that reveals nothing about the individual UA, so it's not a privacy risk at all anymore.
https://w3ctag.github.io/security-questionnaire/#underlying-platform-data says the "PDF viewer plugin objects list almost never changes", but in fact the specification gives it a fixed value that reveals nothing about the individual UA, so it's not a privacy risk at all anymore.