[sneak]

The fact that you use the term "bait" illustrates that it is about self-control and not compulsion.

It's absolutely not adversarial. People voluntarily install these apps. This is opt-in advertising.

[fdjm]

They don't install the apps for the purpose of seeing advertising, and there's no way to opt out of the ads, so I don't think that is a good assessment.

[sneak]

I never see Instagram ads, but then again I don't have an Instagram account or have the app installed.

The opt out button is the "delete account" button. Instagram and Facebook's surveillance-based advertising systems are one and the same.