When the Steam Deck was still just an idea, Valve says some staff were like, "I just want that for me" and "the point wasn't even to make a product out of it"
It's also what got me to finally go linux full-time.
I had tried to a couple times before, but always ran into one too many snags.
When the deck was announced I thought to myself "that can't work with every game, can it?" as I'd attempted that myself.
But I had to see for myself, and the improvements in proton were staggering. And it's gotten even better since! Who would have though Apex Legends, Hunt Showdown, and a bunch of other holdouts and anti-cheat games would be running on linux within a year of the deck releasing?