Aren’t your problems solved by carrying a bit of plastic issues by your bank? Why isn’t that enough?
Your account is from 2021. There were a lot of "Paypal locked my account and all my money is in there" stories at least 10 years before that year.
So YMMV.
The device called "Smartphone" is only used to collect every possible detail about your life. The smart thing on a "Smartphone" is that, besides your bank, a lot of other "vendors" have access (not only) to your financial information.