Has Paypal suddenly started charging sales tax?

@steakster is correct.
But why would PayPal charge and collect sales tax? It's the vendor who adds the tax to the selling price of the goods.

And as steakster stated, it applies to all forms of payment from an online sale; credit cards, checks, money orders.

Paypal does not charge sales tax. In some states it is required to add sales tax to the item purchased. Here is an explanation of how it works!

https://www.taxjar.com/guides/sales-tax-guide-for-paypal/#the-basics-of-sales-tax-in-the-us