Can you express what it is about Stripe's design that was better than Apple, et al.? I've always wondered at this as well, not that I ever thought it was subpar

Can you express what it is about Stripe's design that was better than Apple, et al.? I've always wondered at this as well, not that I ever thought it was subpar design, but I don't understand what made it special. I'm definitely not a UX/UI person though, so I am genuinely curious what I am missing.