It would not in principle, those rely on hardware backed keys with Google's latest iteration of Google Play Integrity. The only success people have had is by using leaked vendor keys and spoofing device fingerprints for old A11-era devices which did not have the hardware baked in. In time even this avenue will no longer work. People have been trying to get around it for a while [1] but afaik the concept is cryptographically airtight.
My banking app works fine on a rooted phone that I don't bother faking a proper Play Integrity signature for. Except for a warning about the phone being rooted when setting it up, of course. I'm not 100% sure what happens when you have integrity and lose it by rooting your phone, but I imagine the bank app will log you out.
Bank apps only stop working because banks decided they know better than you.
Unfortunately my bank also switched to Google Pay which does require Play Integrity, so contactless payments are out of the question on that phone now. Maybe if Wero compatible terminals extend support for QR payments I could use my bank app again on that phone.
Maybe I'm out of the loop but what is everyone doing with banking apps on their phones that's so essential. I see this argument all the time but it's baffling to me.
I have several hockey leagues and pick up sessions that only take payment via Venmo; prior to league or the session starting. Makes it way easier than going around to everybody in the locker room trying to round up cash.
I also use it for a few vendors for some small payments I make every month for my studio.
I don't use them a lot and I know some people that use them for 90-95% of the stuff they do which is crazy to me like yourself. I try and limit my use of the apps to as little as possible. Whatever works for people I guess.
If we were rational creatures we might choose to do such things while seated at home in front of a comfortably sized screen, rather than squinting at a pocket gadget on a street corner.
IMO the word "need" is doing all the work here. I have a fairly complex financial situation and yet - with a bit of intentionality and organisation - I get by fine without any banking apps installed on mobile.