Can you buy USD on PayPal?

Excuse me, I was wondering if I could possibly clarify something regarding the use of PayPal for purchasing USD. I've heard that PayPal offers a range of services, but I'm not entirely sure if it's possible to actually buy United States Dollars through their platform. Could you please provide some insight into this matter? Is it feasible to purchase USD directly on PayPal, and if so, what are the steps or procedures I would need to follow in order to do so? Additionally, are there any limitations or restrictions that I should be aware of when attempting to make such a purchase? Thank you for your time and assistance.