Here is information of the new unofficial official EnOS ARM installer minus Calamares.
So far EnOS does not support either the Orange Pi 5 or Orange Pi 5 Plus.
The Orange Pi 5 uses the Rockchip RK3588S
The Orange Pi 5 Plus uses the Rockchip RK3588
This is like the Radxa rock 5A and 5B
The Radxa Rock 5A uses the Rockchip RK3588S
The Radxa Rock 5B uses the Rockchip RK3588
Currently Archlinux ARM does not offer any kernels or boot files for these chipsets.
I have not found a Archlinux PKGBUILD to compile said CPUs. So until then, we will not be able to offer any images for them.
What model of the Orange Pi do you have?
Pudge