to be fair, Qualcomm runs on Linux (Android) all the time
This new SOC, has Qualcomm's commitment to be using the latest kernel - 6.9 and to have better support. We'll see what this means for the future, but it looks better already.
Just like MacOS and iPadOS, both run Darwin kernel, but they are very different. Even though iPads have very capable hardware, there are a lot you cannot do on iPadOS.
The same applies to Linux. People want a real desktop operating system.
Jokes aside, yes: Android is a Linux.
Just like how Xbox is Windows NT, and MacOS (and iOS?) is(/are?) BSD.
Delineating along kernels is one useful and objective way of describing OS families.