It is worth noting that getting root on Android does not require exploiting vulnerabilities like on iOS. At least, not for most reasonable phones with an unlock

It is worth noting that getting root on Android does not require exploiting vulnerabilities like on iOS. At least, not for most reasonable phones with an unlocked (or unlockable) bootloader. When flashing an operating system, some do allow root access, some don't, or some make it configurable in settings. Another option is to install a tool like Magisk after installing the operating system.