It's FOSS - https://itsfoss.com/clear-linux/
Brief: Intel’s Clear Linux is not your everyday Linux distribution. It is created for a specific purpose and it excels in that.
Clear Linux is a product of Intel’s Open Source Technology Center focusing mainly on the cloud. It’s not your regular general-purpose Linux distributions, but a distribution that mostly suits various cloud use cases leveraging the best of Intel’s hardware and architecture. There are better power management and performance optimizations along with various other features.
It’s not a detailed Clear Linux review but I spent some time playing with it. And I’ll share my experience with Clear Linux installation and