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
I don't think that PayPal would ever consider adding a crypto-currency like TRON on its accepted crypto-currencies list. I haven't used crypto-currency on it but as far as I know it accepts a few crypto-currencies at the moment. The PayPal accepts following crypto-currencies: BTC, BCH, LTC, ETH, and PayPal USD which is the stable coin offered by PayPal itself. All of those are well known crypto-currencies and there is no need of adding any other crypto-currencies at this moment, and I must say that all of those crypto-currencies are better than TRON. I would recommend you to go with Lite Coin if you want lower fees because my experience has been good with Lite Coin when it comes to fees, and I hope that it will also be useful for you to save up on fees.