The Linux-Hardware.org project has published the Linux Hardware Trends report tracking most interesting hardware characteristics of Linux-powered computers: https://github.com/linuxhw/Trends
Interesting to compare it with the Canonical’s Ubuntu User Statistics report published about a year ago: https://ubuntu.com/desktop/statistics
Everybody can contribute to the report now by “Hardware Probe” app (search for it in the Flathub and Snap stores) – the report is updated monthly!