Dell Pro 16 AMD PB16255 - Cannot get audio coprocessor installed/updated after SCCM image

Had up to date GPU driver, so I tried that fix. It shows various audio entries, like AMD high definition audio device, lots of soundwire entries, some BT and USB entries. But no ACP. There are no hidden or unknown devices related (no unknown at all).

The result is windows seeing no audio output devices.

Have tried uninstalling and reinstalling GPU drivers, have tried manually installing just ACPbus drivers.