Buy MacBook Pro with PayPal at Apple Store (US)

Yes.

Ref: Payment methods you can use with your Apple ID - Apple Support

According to Apple, yes.

https://www.apple.com/shop/help/payments

Tesserax wrote:

Yes.

Ref: Payment methods you can use with your Apple ID - Apple Support

The yes is correct, but AppleID payment is for iTunes-type purchases, not hardware.

Yes, you are correct, and thanks for providing the OP with the proper link for PayPal eligibility verification for Apple HW purchases.