Yes, it can be added, and it is recommended because it decreases the likelihood of transactions being declined.
However, Laso cards cannot be used to transfer their balance into your PayPal balance, as this is considered a transfer of value and can be abused for money laundering.
My card was declined to be added to Paypal, why?
In some cases, PayPal will give an error when attempting to add a card, such as the following:
In almost all cases, that is because the card is being added to a brand-new PayPal account. PayPal, and other businesses, correctly, counterintuitively recognize that a new account is high risk. As an account spends in normal, healthy ways, that risk level decreases.
If you receive that error when adding to your pre-existing PayPal account that has exhibited normal behavior, it is most likely because you are trying to circumvent country restrictions. If neither of those apply, it is likely to be one of the other high-risk behaviors.