Not all banks, government services, travel and ticketing systems, and the list goes on.
The unfortunate reality is that we have a duopoly in the mobile device market and having one of those devices are now a practical necessity to live a normal life for most people. Without regulation to force the market to open up there's little to stop organisations that want ever more control over the devices you can use to access their systems. Trying to go outside the two big players just means you're going to get a substandard or completely pointless experience. And even governments are in on it.
Which is going to be interesting when both the huge US corporations that form that duopoly and/or the government of their home nation decide to do something that goes against what the government or laws in other places want to happen.
You're not wrong, but I'm trying to raise the issue with any service forcing me into the duopoly by showing them my Librem 5. Sometimes it's quite entertaining. This is another venue for making the change.
Now show what banks (and where) have apps targeting that phone
Not glorified webpages. Full on apps. Preferably by the banks themselves (sorry bedroom hobbyists, I don't quite trust you with my banking details yet!)
And this is the problem. We should insist on standard web pages for everything, and never allow closed source apps on our devices. Native apps are far less sandboxed and under certain conditions make it trivial to spy on the user by accessing contact lists, other apps installed and more.
AFAIK the only Android derivative that has patched the most obvious security issues of this kind is Graphene.
