Welcome to the PayPal Community! I understand your concern to link PayPal to Nintendo Switch. You can create a PayPal account through PayPal, then link the account through the Nintendo Switch eShop or the online Game Store. Please refer the below steps.
Click “Link a PayPal account.”
Log in to your PayPal account or create a new PayPal account.
Review the PayPal Policies and click “Agree & Continue” to complete the link.
I hope the provided information is helpful to you.
