Earlier quoted context omitted.
This. Most of us do not want to carry two phones around. The reality is that there is strong utility for those non-open apps and they will never be replaced by open ones. In some parts of the world, WhatsApp is as necessary as the phone itself. Official business is conducted via it.
Communication is the main issue - If you've got whatsapp/telegram/whatever,and a couple others you can handle your own life differently without human interaction being affected. The rest is a personal choice, I'm happy to have a bit higher friction to check my bank's balance for example. Maps is an issue but it can be overcome.
I find this to actually be a great litmus test for the overall problem. Bank account balance is a basic piece of information that's about me, and that I need to keep track of to effectively live in our modern times. I should be able to access that information non-interactively at any time. But I can't.
Ask many banks, you'll get as many reasons for why they can't just allow me to cURL this number off an endpoint with some pre-shared credentials. Most of those reasons are bogus[0]. Now, it's not hard to identify several points where I could observe that information in-flight. There's an API that powers the app. The app itself has UI that could be queried or scrapped; some apps will even communicate this data to other apps when requested.
But good luck getting access to any of that non-interactively.
This is what all those technologies add up to. The bank says I can't have this information unless my eyeballs are physically looking at the screen displaying it - and the whole tech stack conspires to make sure I can't get it otherwise.
It's a trivial and non-critical need, but it's also exemplifying the basic user freedoms being denied to us: the ability to freely process information on my own device.
EDIT: Accessibility tools are often the only remaining workaround here, because those are uniquely hard for services to close. And as expected, accessibility became its special privilege category on modern devices, and is increasingly heavily scrutinized and limited by device vendors.
--
[0] - They're usually some kind of security or stability point, that's just a fig leaf to cover the actual reason: this is the way they can force you to interact with their app or website daily, creating an extremely valuable marketing channel for their financial products.