Yes they are. The definition of empirical is that you can observe the evidence. This is easily observable.
What have you presented besides your own anecdotes?
> "Apps like this" on Windows/Linux
It's called Google. The same thing I use to find iOS apps because Apples app store search and recommendations are horrible. None of the app store searches are really any good and I'm pretty sure Google is the number one place that people usually search for things. I don't know anybody who opens up their app store to search for an app.
Anyway, argue all you want - you're wrong. People care about updates that mess up their stuff whether you can bring yourself to acknowledge that or not.