@kaia In my threat model, the "dirty" stuff I do on my phone puts banking with a mainstream bank within the same enveloppe, so I personally I just wouldn't bother separating it. Unless you have a rooted phone with weird software from shifty randos, your insecure habits are likely infinitely better than your average normie elderly person's, and those still OVERWHELMINGLY get "hacked" or defrauded through disclosing information they shouldn't, not through their device being insecure.