If you’re just wanting the functionality of a Steamdeck on some other device, there are a variety of ways to accomplish that. If the other device is an Android, you can just install the Steam Link app and you’re off to the races. If it’s something else, depending on the device you can probably get Moonlight running on it, which will accomplish the same thing but will actually have more versatility than you’d get with a Steamdeck anyway.
Yes, I’m just offering an option to replicate that streaming functionality here. As to versatility, that depends entirely on what you’re doing. There are situations in which the Steamdeck would actually be the far more limited platform compared to what I described.