Cloverplay lets you play cloud games (on Stadia & Game Pass's cloud streaming) using on-screen controls.
- Open the app
- Grant root access and enable the service inside.
- Now, any time you open a game in the mentioned apps, the controls will appear. To access the notification area or the screen beneath, press and hold the down arrow in the middle of the bottom of the screen. Press and hold the same button afterwards to make the controls re-appear.
Please see the website for more information: https://cloverplay.app/