I think the average user doesn't know the app is there to circumvent tracking protections in browsers and doesn't realise the app is most likely just a web page in a wrapper.

I was at a car park in UK and you didn't have to install an app, just scan the QR to go to the web page, simple payment. Sadly they then messed it all up by not offering payment through normal services.

The average user does not demand an app.

If they did they would not need to be pushed to apps by "it works better on the app" or offered discounts for using the app.

the average user demands an app

No, the average middle manager demands an app.

The average user has gotten over the novelty of having seven million apps on their phone.

Please provide your proof of this statement