I’m gonna hope it’s a troll.
But some people are really weird about “owning” games. The other day I was in a call with someone who spend hours hunting through dodgy key selling sites to buy a delisted Steam game at nearly twice the price…
And yes I told them where else they could get it but they cared more about having the game appear on their Steam list than actually playing it.
I think there’s just people that trust Valve more than Linux in general.
SteamOS on the deck is extremely foolproof, and people who are otherwise scared of Linux seem to think SteamOS magically fixes every perceived issue with desktop Linux.
That’s my best guess but I’m just some dude.