Seriously... there will never be a wide-spread year of the Linux desktop. Because that would require lobbying and investments to get devices with pre-installed Linux by default to the clueless majority that doesn't actually know what an OS is anyway.
And once a Linux distro goes commercial to fill that requirement it is incentivised to implement all the usual crap and enshittification that are missing in Linux normally.
None of those graph ever are. Because Linux users are more prone to tinkering, keeping stuff private and blocking a lot of bullshit scripting, there is big dark area of Linux systems listing themselves as something else (usually Windows because of those asshole websites not playing well with Linux by design without an actual valid reason other than "we don't like Linux").
(PS: For the same reason a lot of sites believe I'm using Chrome. I don't but I know they like to fuck with me when they see that Firefox user agent.)