It's for a different purpose. (as in mitigate to some extent security bugs) And isn't an Apple feature only but an Arm one. (that is only rolling out on Cortex

It's for a different purpose. (as in mitigate to some extent security bugs) And isn't an Apple feature only but an Arm one. (that is only rolling out on Cortex with Cortex-A78C and A78AE) A paper on it from Qualcomm: https://www.qualcomm.com/media/documents/files/whitepaper-pointer-authentication-on-armv8-3.pdf https://www.qualcomm.com/media/documents/files/whitepaper-po... And there's also MTE which is upcoming.