Shield tv 2019 updated the remote control. The new remote has a big Netflix button, and the default press is to turn on Netflix, but wouldn't it be useless if you didn't buy a member? Look at the itchy hands!
How can I use it?
Install buttonmapper. You can search for it in the Google Store. Once installed, you can customize any keystrokes. But I recommend that no one customize the Netflix keys only.
The setting is simple, I won't go into it. The point is, don't forget to turn on the accessibility features of your preferences.
My own buttons are: click YouTube, double-click On Fish Live, press and hold plex. Perfect!