On top of the sibling commenter's point (that timing is everything - a 2015 failure doesn't guarantee a 2023 failure), Steam Machine wasn't the same as what the

On top of the sibling commenter's point (that timing is everything - a 2015 failure doesn't guarantee a 2023 failure), Steam Machine wasn't the same as what the gp is suggesting. Steam Machine was a PC-like piece of hardware aimed at competing in the console market. The gp is suggesting a gamer-oriented piece of software aimed at competing in the consumer OS market. The latter is definitely not something Steam Machines tried and/or failed at.