Almost all my banking is done from my phone. It’s rare I need to sit in front of my PC to do so. But that also doesn’t need backed up, it’s all web accessible. I do download all my bank, credit card, and loan statements monthly, but I store all of that in my Proton Drive, nothing remains on my PC. I call it my gaming PC because that’s what it’s for 90% of the time, but I do use it for personal stuff too. That doesn’t really change the fact that literally nothing needs backed up aside from game saves.