is what? endless? it is a distribution, produced by the endless foundation.
https://endlessglobal.com/foundation/access/operating-system

my ‘monitor’ (really, an aio with hdmi in) runs win10/endless dual boot. this is the endless side. note the loop device in the gnome disks window, that’s the .img on c:\ that holds endless. efi grub handles the boot menu. all set up by the endless for windows ‘installer’.

jdG9uBVZt3sk6L6.jpg