The Android kernel is based on an upstream Linux Long Term Supported (LTS) kernel. At Google, LTS kernels are combined with Android-specific patches to form what are known as Android Common Kernels (ACKs).
They do diverge. Linux generally does not merge code from Android. You clearly haven’t attempted to get complex binaries complied for Linux to run on Android. There are significant differences between the 2 operating systems that become very apparent when you’re doing system-level coding.
this document says otherwise.
Like I said, android is a fork of Linux. That’s what they mean when they say it’s “based on an upstream Linux LTS.” It doesn’t mean they’re the same.
Fork implies they diverge. They don’t. Android would rebase from time to time.
They do diverge. Linux generally does not merge code from Android. You clearly haven’t attempted to get complex binaries complied for Linux to run on Android. There are significant differences between the 2 operating systems that become very apparent when you’re doing system-level coding.