I was thinking that maybe such idea could be applied on a Linux phone that could run all your banking apps without Waydroid's "you-must-be-a-hacker" issues, literally by having a half-asleep Android running on another chip, which you can wake up whenever to do your "non-hacker" things, while at the same time you can run the rest of your system (calls, messaging, calculator, calendar, browser...) on your lightweight, private and personalized Linux mobile OS.
I think I would pay big bucks for something like this, and it could serve as a transition device for ditching Android in the future when Tux finally governs over the world.