Yes paypal use crypto but instead of eth many users was expecting the TRON blockchain its faster cheaper and more used.
Eth transactions still too expensive i hope they start use TRON soon
The country you come from also determine the acceptance of cryptocurrency to be used. The countries that ban or is not using cryptocurrencies in their domain will not also allow their financial institutions to use cryptocurrency. And the countries that ban cryptocurrency did not even allow Online financial institutions to use cryptocurrency, and this I am saying it from my personal experience.
The last time I used PayPal, there was no cryptocurrency listed in the payment method or option and that should be late last year. And I was thinking that it was because of the ban of cryptocurrencies in the country by the Central Bank of Nigeria (CBN). And also all the online Banking apps in the country do not accept cryptocurrency and this make me to affirm the thought.