It’s a heavily-forked version of Linux with so many changes that it’s not really Linux anymore.
Is XboxOS literally windows?
Is MacOS literally FreeBSD?
Is PlayStationOS literally FreeBSD?
Omg do MacBooks and PlayStations have the same OS?? I can play Ratchet and Clank on a MacBook???
Android does not use an up to date, or mainline Linux kernel. It gets rid of most of the GNU core utils. It doesn’t use other big parts of Linux like Wayland or X11. I can’t install random Flatpaks on my Android phone. Etc etc.
Calling Android “literally Linux” is incredibly misleading to the point of basically being a lie.