Having a rooted android 11 phone for years was never a problem. My bank apps worked just fine. Even for work stuff (usually). It's on the personal side where I actually started to value having a virtual credit card on my phone with Google pay or apple pay. The stack to enable that securely is only on android and iOS and there's nothing else out there that has that. Open source community needs a full stack for attesting biometric sensors, storing secrets, and pushing them out through NFC and doing it properly is a lot.
Seconded. The NFC payment feature is useful on mobile in a way that generic "online banking" just isn't IMO. In the same category are transit apps, ride-hailing apps, social messaging, and a (very) few other others. The problem is that payment really does require a secure stack, as you describe.
I prefer to use an actual credit card, in order to keep the control over my computing in my hands.
Indeed, I do too. But since you always need at least one backup means of payment, I keep a second virtual card on mobile for that. Which alas is a very convenient solution.
Why can't you have two plastic cards from two different banks?
I find that cards are a PITA, mainly because they're always expiring and I tend to change physical address a lot.