You may not realize this, but the game has already been available on mobile devices for a long time. Moonlight is an open source for iOS, Android and Chrome as reverse engineers Nvidia's GameStream feature, allowing you to stream games to almost any device (instead of just the officially supported Nvidia Shield).
There is a Nvidia card required in your computer, but as long as you have it, you can stream games directly to your phone, tablet or even another computer. AMD has an official app for Radeon users called AMD Link.
With all these options there is the possibility to do: Steam Link works well and is platform agnostic but does not have many settings. The moonlight has lots of settings that you can tweak to change performance and controls. AMD Link has some extra quality settings, but in my experience it is a bit jankier. In my test, it was an extremely smooth experience for most games, although some had some quirks (like a black screen). If you encounter any problems or missing features, give the moonlight or AMD Link a try. Graphics and streaming were comparable in my tests, but it will depend a lot on your device and your network quality.
Remember that even if the network is relatively fast, streaming performance may be crooked or completely useless. Network security is as much of a factor as speed, and having a wired connection on your computer can often make a big difference.