What's up with people on here being jerks and saying

> you lie!

It's becoming more common, and I know I'll downvote anything that says it because it isn't constructive.

Back to the point, the quote definitely says to me that they support Linux other why mention that the game is playable on Steam Deck?

> why mention that the game is playable on Steam Deck?

Because it became playable? And now it's not. System requirements are still the same. You can see them on game purchase page.