The statistic isn’t saying that 50% of Linux gamers use steam, it’s saying that Linux gamers are ~1/2 as likely to use steam for games when compared to gamers on other platforms. these are very different things.

~50% of Linux gamers using steam is only true if you assumed every gamer on the other platforms used steam

btw i hate the term ‘gamer’ but it’s just convenient to use here :(