On a ROME x86_63 Plasma running under plasma-wayland.
$ wlr-randr --help compositor doesn't support wlr-output-management-unstable-v1
$ sudo wlr-randr --help [sudo] password for ben79: error: XDG_RUNTIME_DIR is invalid or not set in the environment. failed to connect to display
I am not sure how necessary this package might be. I do not normally use plasma-wayland at this time and do not know much at all about Wayland or how plasma-wayland works. But felt like I should report this.
This came about because I was trying to help user with screen brightness issue here. In that case user is using Gnome/Wayland neither of which I use.