The user experience of someone who wants to take self custody is trash using Coldcard.

If you use Seedsigner, foundation Passport, blockstream Jade,

Any one of those interacts with QR codes which pairs perfectly with your smartphone as well as any laptop.

You get amazing security and awesome intuitive user experiences with the other devices.

Also it's not actually open source and the others are so supporting the other projects = supporting Bitcoin self custody ecosystem directly.