Source
Linux currently 29.1%
Sample size according to StatCounter: 24,353,436 page views
I don’t really know about the uptick, but the general trend upward over a longer period of time I kind of wonder if it’s due to things like the steam deck. I played around with gaming in Linux with wine back in the early 2010s and was woefully unimpressed with how little I could do, especially with the amount of work involved. I didn’t really give it a second look at all, but after the deck released I was blown away by how much has improved, and it’s motivated me to see how much I can get away with without windows. I wonder how many people have had a similar experience.