Go to https://wiki.lineageos.org if you want to install and/or compile for a phone.
More accurately, "as of December 2025, Android, which uses the Linux kernel, is the world's most popular operating system with 38.94% of the global market, followed by Windows with 29.99%, iOS with 15.66%, macOS with 2.14%, and other operating systems with 10.78%."
and then maybe ubuntu touch: https://www.ubuntu-touch.io/
edit: list of supported lineagos devices (would have been crucial to note in the OP that only certain devices are supported; some have "unofficial" third party support as well, not listed on this link): https://wiki.lineageos.org/devices/