I think the deeper question is: Are you truly being allowed to opt out if you can't disable (or aren't ever prompted to disable without knowing an arcane set of

I think the deeper question is: Are you truly being allowed to opt out if you can't disable (or aren't ever prompted to disable without knowing an arcane set of menus) the UI elements (e.g. the aforementioned prompts on password fields, or the prompt to install an app whenever opening the mobile web version of a site) that serve as an advertisement for the specific service? To be sure, this isn't just restricted to "please install this" dark patterns, and in certain ways it's been central to the ad-supported business model ever since the first television ad was shown on a network channel. But arguably we shouldn't give any of these examples credit for truthfully being "opt out."