The best interfaces I’ve shipped in fintech are the ones users never mention. Nobody praises a settlement screen for its typography — they praise it for the fact that the money moved, on time, and they never had to think about it twice.
That’s a hard thing to design for, because it means the interface’s job is to disappear. Every extra confirmation step, every ambiguous status label, every screen that makes a user wonder “did that actually work?” is a failure of design, even if the pixels are beautiful.
The teams that get this right treat trust as the primary design material — not color, not motion, trust. Once that’s in place, minimalism stops being an aesthetic choice and becomes the only honest one.