[lucketone]

Just an act of asking for the opinion matters.

(Maybe not for all, but definitely for some)

https://en.wikipedia.org/wiki/Hawthorne_effect

[hbn]

That claims surveying workers improved their productivity at the job.

I don't think you can apply that to be interrupted with a popup while using a calculator.

[lucketone]

There probably is a second order effect - designers who have heard this, are more likely to add survey/feedback form into an app. (Even if first order effect is not real)