Nah. It's a pretty shitty product.

Square, you can pay a merchant from any lightning wallet and the merchant can receive Bitcoin (or convert it if they want).

PayPal, you can pay a merchant only from Bitcoin held by Paypal or a linked exchange account. They convert it to PayPal's stablecoin, then to USD. Merchant cannot receive Bitcoin. Maybe they could convert it on PayPal to Bitcoin for more fees.