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
That's great for you. But it also has tons of problems with a lot of other users. Including issues with proprietary drivers, XWayland compat for many apps/games, screen tearing, multi-monitor setups (esp. with different aspect ratios and/or dpi scaling factors), VRR, HDR, rotation, color management, many accessibility features etc.