I recall during my android root days that banks would block your phone from running apps if you were rooted - I needed to install a separate app and define which apps I could "sandbox" of sorts, to convince them they were running on a non-rooted device

Are there any workaround apps sort of like this now, or has Google finally plugged all the loopholes for this?

If one of my banks made an app mandatory, I’d find a new bank. All my banks function fine via desktop web browser.

I've deleted Revolut some time ago because of that. Well, they've since reversed their stance. Not sure why but now it works with Lineage.