If you don’t mind disclosing, what bank is that?

Just use a web browser.

People act like they can’t live without these apps, which are often just a repackaged website anyway.

If at all possible, anyone that cares about their privacy should be self hosting.

https://lemmy.world/c/selfhosted

Everyone should be degoogling their devices before malware gets installed by an update. Get rid of windows while you’re at it. This may take time, so start now.