I assume Digitec doesn't know any more either. Logitech's website also can't give a date and it has a note "We are experiencing unprecedented demand for our webcams and are working tirelessly to fulfil orders as quickly as possible."
https://www.logitech.com/de-ch...
In another question, Christian Walker (Digitec) wrote "Regrettably no, currently the product is still pending with our suppliers and we have no further details on a possible delivery date. As soon as we know more, we will be happy to update this here. "