XPost: misc.phone.mobile.iphone, alt.privacy

What unique iCloud/family account tracking identifier does Apple add
to _every_ IPA you install on an iOS device from the Apple App store?
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REFERENCE:
*Apple Rumored to Allow Third Party App Stores, At Least in the EU* https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/8rl7ZWpDBQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/0azzgD5HBQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/-WD4Zd8yBQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/Zy_3UOo0BQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/VFnOFLg5BQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/qzIe5oRYBQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/9USlnDyIBQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/YEtkXJg1BQAJ
https://groups.google.com/g/misc.phone.mobile.iphone/c/65PRo2wJlNk/m/HeSwVsZFBQAJ

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