Source: https://linux-hardware.org/?view=os_display_server
Reporting is done by users who voluntarily upload their system specs via
# hw-probe -all -upload
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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You’re discounting the trend here. Assuming the methodology is consistent, over a short time we’re seeing a noticeable change, bias or not.
I'm not actually. Does anybody doubt that wayland use is increasing? Distros have increasingly been making it the default. I'd be surprised if use weren't increasing. In fact it might be under-represented in this data depending on whether all distros are being accurately represented or not.