How to transfer Apple Pay balance to PayPal?

How can I transfer some of my apple pay balacne to my Paypal account? i.e. funds transfer

Essentially i want to transfer money from one account to the other and since they dont live in the same echo system my understanding is i have to use a medium, like my debit card.

Has anyone done this before, if so, does it work? Are the tweaks or quirks i should be prepared for ex. realtime transfer delays, etc

thank you for any support you may offer