Yes please, this is the only card I actually want mostly for security, privacy, zero fees and expense tracking reasons.

Disclaimer: I used to work at Apple in their online services division, and I know first hand that (at least during that time) they cared a lot about privacy (often against short to medium term financial gains)

This does make me sad. The shift away from hardware and software to "services" and "financial products".

Despite the fact that I want the banks to be disrupted, I'd rather have a Stripe or Square or Coinbase etc do it, and have Apple focus on other things.

Oh God no! Not Square at least. They'll happily send your financial statements to random other people, then act like it's completely normal that they did that, and really weird that you're upset about it. Plus their customer service (for end users who buy products, not the merchants) is extremely adversarial. They have a really shitty chat bot that is the only way to contact them to get help when they screw something up. It's awful and very anti-consumer.

Yeah, I signed up for that the day the beta invite hit my inbox. See above for reasons why. We'll see how it goes.