GhostBSD
GhostBSD is a user-friendly desktop operating system based on FreeBSD. Its default desktop is MATE, but a separate community edition with Xfce is available too.
VS
pearOS
pearOS is an Arch-based desktop Linux distribution which features a macOS-like theme and icons on top of the KDE Plasma desktop. Some of the distribution's features include a custom system installer called pearOS Installer, a pearOS welcome application, and the GNOME Files file manager.