USB passthrough to scanner again dead in Tumbleweed; works in Leap 15.5

I now wonder if this issue is related to:

https://forums.opensuse.org/t/usb-grayed-out-cant-add-usb-devices-in-virtualbox/172220

and

https://lists.opensuse.org/archives/list/factory@lists.opensuse.org/thread/JY7B23ZW47T65XALKX4SV6YVGC44LPYO/