The Linux kernel powers both Android and other operating systems, but building a custom Linux distro for a mobile device can be challenging due to the need for robust peripheral support, power management features, and expertise in developing for mobile devices. In contrast, Android offers broad hardware support, modern tooling, and platform resources necessary to build exceptional software experiences, making it a more straightforward choice for developing mobile products. While building on Linux may require significant investment and expertise, there are situations where its advantages outweigh those of Android, such as in industrial robotics or automotive environments. However, for most device use cases, especially in the smart device space, Android is likely to be a better fit due to its vast ecosystem, extensive hardware support, and ease of development tools.