It's not a technicality. Android uses the Linux kernel like any other Linux distribution. Games that target Android depend on the Android runtime and framework and games that target Steam on Linux depend on the Steam Linux runtime. Linux games can also target an arbitrary set of dependencies, but compatibility may not be very good.
Just because Android has a stronger brand than Linux and doesn't feel the need to advertise to people that it uses the Linux kernel, that that doesn't make Android any less of a Linux distribution. Most consumers don't care about the kernel the operating system they have uses. Saying that nobody calls Android "Linux" is irrelevant.
Just because Android has a stronger brand than Linux and doesn't feel the need to advertise to people that it uses the Linux kernel, that that doesn't make Android any less of a Linux distribution. Most consumers don't care about the kernel the operating system they have uses. Saying that nobody calls Android "Linux" is irrelevant.