"You are thinking of userspace." Is it really Android advertised to the West that people want if it doesn't have the userspace? That's like Windows open-sourci

"You are thinking of userspace." Is it really Android advertised to the West that people want if it doesn't have the userspace? That's like Windows open-sourcing the kernel but all the needed apps are proprietary. Might as well consider the overall thing proprietary unless your customers exclusively want the kernel plus also-ran software.