YouTube Signature Device is a tag given to the phone which passes criteria required to achieve the best-in-class video experience YouTube has to offer. That is: HDR, high frame rate, 4K decoding, and next generation video codecs support.
Check out the list here.
Filament is a PBR (physically based rendering) engine optimized for Android, but also works on Linux, macOS and Windows.
Filament is a tool made for Android developers who want to create high quality 2D and 3D rendering with ease. Filament features Native C++/Java/JNI API, OpenGL, Vulkan 1.0, HDR, Physical light units, MSAA and more. And they also support in-depth documents for Developers.
For more info: Download / PBR Guide / Material Guide / Material reference sheet
Google Ads, formerly known as Google AdWords, evolved to be easier, smarter.
As I posted a while ago, Steam released app that allow players to play their game on smartphone.
Steam Link app is only available on Play Store now, iOS version is still pending review from Apple.
Google made a game that make players to find real world version item of emoji by using AI to recognize the object.