How to Use a Debit Card to Make PayPal Purchases
You cannot transfer funds to your PayPal balance using a credit or debit card. You shouldn't have to, on the other hand. You can use your credit or debit card instead of your PayPal balance when making a PayPal payment.
As a result, if you attach a card to your account, you don't need to have a balance. You can borrow money from friends or pay your suppliers with your card. Remember that, like any other card payment service, there will be fees, which are tax deductible.
For this to operate, you must first set up a connected card. Log in, navigate to your wallet
Source: https://themoneyflow.net/how-to-add-money-to-paypal/