I personally am looking forward to my smart phone completely replacing all of my other computing devices.
A major road block for that reality is quality gaming options.
I love the service stadia offers and I believe it can be a leader in clearing that road block.
That being said the mobile app is currently not optimized to be used in this way, and is pretty much unusable in the dex environment.
I don't understand much about DEX or how it could help the Stadia app, but I think the Stadia developers could make something out of your idea.
Would be great if you could send them feedback about your ideas how to improve Stadia with Dex. Just tap your profile picture in the top right corner in the Stadia app or on stadia.google.com and select "feedback". They're checking out every bit of feedback, so your voice will be heard that way. ![]()
When using Dex, open Chrome and go to the stadia website. Turn on desktop mode, connect a bluetooth controller (or connect the Stadia controller via wifi or USB-C using a USB-C Hub to connect to both the Tv/monitor and controller at the same time) and voilà, you're gaming anywhere with your phone.
Obviously having the app react this way would be much easier, but I'm sure we'll get there at some point given the strong Samsung+Google partnerships going on.
Worked well from my experience