This is one of those questions like what will you do if there's a solar flare that destroys the Internet? Should we really worry about this?
Quantum computing is a joke. The rivalry is based on how much computing power one dev team has over the other and they show off in scientific journals that it takes their computer a given amount of time to resolve this or that problem. The most important part in all of this is that these problems are written in a language a quantum computer can process. It cannot process our binary data yet. Once it gets good, you'll have other things to worry about because your bank account is binary and so is your digital ID.
It is true that current quantum computers are specialized and can only solve specific problems written in unique quantum language not our everyday computer code. However real concern is that future more powerful quantum computers could potentially break strong encryption that protects everything from your bank account to your online identity which relies on math problems that are currently too hard for regular computers but might be easy for quantum computer using algorithms like Shor's. And yes this is not immediate threat and experts are taking it seriously and are already working on new post quantum encryption methods that will be safe from these future attacks making sure our data remains secure for in coming years.