"Check out as guest" should be an option on every digital store front.
Creating an account should not be required.
Providing your phone number should not be required.
2FA should not be required.
Using the app should not be required.
Using Chrome should not be required.
The site should work with screen readers and magnifiers.
It should be low bandwidth and tolerate high latency.
The vendors contact information and address should always be clearly and clearly presented, with a real email address and direct-to-human phone number.