Saw the data here, on Statcounter: https://gs.statcounter.com/os-market-share/desktop/united-states-of-america. But now that I have searched it, it seems that maybe this spike is related to bots masquerading as Linux traffic https://www.pcworld.com/article/3204830/linux-didnt-actually-hit-10-percent-market-share-blame-bots.html.

Who knows, but indeniably, Linux is gaining attraction progressively.