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Purpose: CalyxOS is one of the few open-source OSs for Google Pixel 6. Most of the closed-source OSs are Tivoized (most do not allow the owner to use sudo or su).

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    Lineage is has by default no root/su (to my knowledge). If you want to have root you have to apply it yourself. Only very very old versions of LineageOS have su/root pre-installed. And regarding "secure boot" (on Android it is called different): if I am not mistaken this depends more on the phone and if it allows to install a custom signing key. Every AOSP ROM can be signed in the build process. It is just the question which key to use and who controls it. Commented Oct 2 at 21:22
  • @Robert xda-developers.com/… says that CalyxOS's official AddonSU was dropped in favor of Magisk modules which give su. Arm64's version of Secure Boot is TrustZone; CalyxOs is one of the few smartphones distributions which can sign their bootcode with official TrustZone (similar to how Ubuntu is one of the few desktops distributions which can use official Secure Boot.) The question now includes this. Commented Oct 3 at 16:25
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    "Secure Boot" on Android is named Verified Boot. ARM TrustZone is for executing code in a minimal trusted environment where data extraction is not possible like a smartcard. Commented Oct 3 at 16:32

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