When you create your account with the Sign Up with Apple feature and select Share My Email, it will use your email address linked to your Apple ID for your Bybit account creation. However, if you select Hide My Email during registration, Apple will create a unique, random email address with the @privaterelay.appleid.com domain for registration. All emails sent to an account registered using @privaterelay.appleid.com will automatically be routed to the email address linked to your Apple ID.