If you have a rooted phone, you can try to use Magisk Hide. That worked for me on various banking apps (but not Google Pay). An alternative solution is to use

If you have a rooted phone, you can try to use Magisk Hide. That worked for me on various banking apps (but not Google Pay). An alternative solution is to use another device with the stock ROM (e.g. an older/used/slightly-cracked phone) for banking purposes. Then it can be locked down to reduce the attack surface (e.g. uninstall non-banking apps, stored in a secure place, bluetooth disabled, remove SIM, turned off when not in use, etc.) An older device may not have the latest OS security updates, but it'll still be reasonably secure if you reduce the attack surface. Most of the exploitable security issues will be updated via the Play Store, and due to the Android's heterogeneity and security protections, OS/driver vulnerabilities are difficult to exploit.