SteamOS the operative system will always be supported but as of today there are no other officialy released devices with SteamOS other the Valve's Steam Deck lineup.
## Linux Desktop
It is working, but the user experience might not be that great it as we want it to be just yet.
You will also need to manually configure the input to match your desktop and might need to tweak more settings. If you want to try it make sure that your distribution has flatpak support (else you will need to install it).
### Putting Linux on Windows Gaming Device and running RetroDECK
We have user confirmation that RetroDECK does work on the other handhelds. Our community is highly creative and likes putting RetroDECK on new things like Legion Go and ROG Ally.
It would be a major undertaking but one day in the future it could be possible. But it would need to be a unique experience as the emulators, other underlying systems would not be the same and would need to be rewritten.
We would also need more developers with ARM experience to help us with this effort.
For Android we believe that it is not possible to right now bundle and preconfigure emulators on Android unfortunately as the licensing is different of both the ES-DE frontend and several emulators in the Android versions on the various app-stores.
It would be a major undertaking but one day in the far-off future it could be possible as the platform matures, the idea of a widely accepted open-source architecture is exiting at least.