The banks not much better. All banks in my country have dated late 90s-looking websites with not even UTF-8 encoding (so you can't send an email with a comma). They are barely usable on desktop. I'd have to make my own client or at least whip up a lot of magic CSS to get it to be mobile-friendly and would even still need to include QR code scanning as it is so ubiquitous that no one would let me fiddle with adding their account numbers.