Yep. If someone is trying to make you do something, or stop doing something, or buy something, your first question should always be "Why?".

Why would someone try to force me off of my browser (that has ad-blocking and tracker-blocking mitigations) and on to a locked-down app that may want permission to run in the background, display notifications, access my files or camera, etc?

Maybe it really is to "improve my experience"... yeah, right.

Yeah, crippling your website in order to force users to download an app that may be able to access for of a user's data, is a clear sign that there are people you don't want to do business with.

There are several sites I use regularly for which I refuse to install the app. There are a lot more sites that I visit only occasionally because someone links to it, and that site immediately wants me to download the app and refuses to show me the content that was linked to. Fuck off with that.