@Aran Billen, Thanks for posting in Q&A. For the passcode and language screen, it is under Setup Assistant screen. You can try to set hide for Setup Assistant screens in Apple enrollment profile to see if these screens will not show any more. Here is a link with more details:
https://learn.microsoft.com/en-us/mem/intune/enrollment/device-enrollment-program-enroll-ios
Hope the above information can help.
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