It peaked at 4.05% in March. The last 2 months it went just below 4% as the Unknown category increased. For June the reverse happened, so 4.04% seems to be the real current share of Linux on Desktop as desktop clients were read properly/werent spoofed.
That’s just a definition for you. For the stats it does not matter what form factor it has. For the software and operating system, the form factor has 0 meaning. We are talking about stats and I explained it multiple times why the Steam Deck is a desktop PC from the perspective of web browsing stats. But I will end the discussion here now, as we are running in circles. Have a good day.