Steam will fail because of YouTube. Not because of marketing, not because it is a good or bad product. Steam will fail because of YouTube. The tech YouTubers that can only **** on products never have anything good to say about anything. That is how the Xbox died.
Secondly the Steam cube will fail because of compatibility layers. There are literally Thousands of YouTube tutorials on how to get software running on Linux. Very few of them are relevant if they are 3 months or older. If anyone of you ever tried to install a game on Linux you will know it is buggy, it doesn't always run and when it does run it is not always stable.
The bigger flop is software compatibility. The bullshit YouTubers tell viewers will damage Linux's reputation and the Steam cube will have to somehow absorb the fallout. I am talking about installing stuff like Microsoft Office for example. I followed the tutorial to the letter. It did not work, not only did it not work the software that was suppose to allow it to work failed because I suspect it is not longer enjoying updates.
Yes you can run Windows on the Steam cube and most people probably will do just that. Linux is not the answer, I personally put it to the test. I was unable to get my scanner to work, I was unable to get Microsoft Office to work and it has to be Microsoft Office because that is what the accountant wants. I was unable to get smooth game play with most of the games. Yes they started up but if the game was build in Unity you will have a bad day with FPS and stability.
The last thing is we can no longer say these are still early days for Linux, they have been at it for many years now. Yes they didn't get the support they needed BUT all that aside, nothing really works on Linux. Not scanners, not printers, not webcams and not USB microphones that need special software to work.
I have tried Mint, Ubuntu and Pop all of them had the same universal problem. Not to mention Nvidia cards do not work well with Linux. They do work but Intel cards and AMD cards work better.
I would love to own a Steam cube and if it does clock in at R10k or R12k I might even consider getting once considering GPU costs lately. But I will probably load a bloat free Win11 Pro install on it. To make it a real computer.