I threw in all those extra terms like "massive" to try to hint at the difference between ~5m units sold and 143m units sold. That's a pretty vast difference and finding reasons why is the crux of the matter

I think the fact the switch and steam deck are from the companies they are matters more to consumers than seeing oems giving it a try after the deck. The gpd win systems that were tiny laptops with controllers were weird but predated the deck, they had so many people curious of them but not buying.