A:AnswerI think so…. The super fast charging has to have some negative impact on the battery lifespan and health. I would suggest letting the phone completely die and then recharging to full as frequently as you can
A:AnswerYes, you can. Except that you will need different cable since iPhone 11 or AirPod-Pro still using Apple lightning adapter. Simply buy a good/quality (to protect your device) cable as USB-C to lightning.