Comment by grapheneos

That's highly inaccurate information. MTE is included on a large number of smartphones beyond Pixels. It's heavily integrated into iOS on the iPhone 17 as their Memory Integration Enforcement feature. MTE enables massive security improvements against exploits and Pixels have had it since the Pixel 8 in October 2023.

Traditional desktop computers have atrocious privacy and security throughout hardware, firmware and software. That isn't a relevant comparison for GrapheneOS. Recent Mac hardware does support MTE and so will non-Mac devices using Snapdragon chips. Qualcomm has added MTE support for their latest flagship mobile SoC platform and will bring it elsewhere. MediaTek and Exynos have also added MTE support.

MTE does not have the substantial performance or battery life impact you're portraying it as having. It's also far more useful than you're portraying it as being. Apple would not have extensively integrated MTE if they had to give up significant performance or battery life. iPhones have a lot of focus on security but aren't willing to make significant sacrifices in those areas for it, at least for the default settings. Their Memory Integrity Enforcement entirely based on MTE is always enabled in the kernel and the large portion of userspace where they deployed it. It's not only used for Lockdown Mode.