Manjaro (Stable) with Plasma 6 (and broken Oxygen icons).
I plan to merge those icons with GNOME icons... which are also partial, but I am too lazy. I like their early 2010s 3D look, but currently nearly half my icons are just missing.
I should be able to just rsync them together I hope and name it something else. Then also rsync the default Breeze icons as a last resort. I should be able to do that with --ignore-existing I think.