

It’s much more correct to say that Lineage or Graphene are Android than saying that Android is Linux.
Both of these are correct. LineageOS and GrapheneOS are AOSP; AOSP is Linux.
Linux is a kernel. Other components must be added onto Linux to create a complete Linux operating system. Adding stuff onto Linux does not subtract any Linuxness from it. Any Linux OS is “real Linux.” Saying that some Linuxes are not real Linux is like saying if you add peanut butter to bread you no longer have “real bread.” It is nonsense.



It’s a funny story but it’s worth noting that copyright does not apply to typefaces in the US (although maybe it does in other jurisdictions)