[Request] Official Steam Machine support

Please confirm

• I have searched existing issues
• This issue is not a duplicate of an existing one
• This is not a request for a plugin

Feature Request Description

Add official support for Steam Machine, confirmed on Decky website/documentation.

Further Description

So, I just got a Steam Machine and would like to use Decky there. After some searching online I can find some reports that it supposedly "just works", but it's pretty early days for the device of course.

In any case, I came to the Decky website and GitHub page to find any information about Steam Machine, but I could not find any.

So, I would like to request official support, confirmed in the documentation, that Steam Machine is supported. Or, if not, why not, and if it will be in the future.