our unit has a CH plug 👍

Is the device supplied with a genuine Swiss plug, as these devices are normally sold in household shops - or do the Swiss at Galaxus again have to be served with such a German clunk of a plug with an attachment?

Yes, there is a Swiss add-on plug already mounted on the original plug. Have fun.

My appliance was delivered (a few days ago) with a Schuko plug and an enclosed CH adapter ...

Yes, the unit has a CH plug