In Zurich they use the Panorama lounge at E gates and they also used the dnata skyview lounge in the main hall - don't know if they still use that though.

dnata lounge would be too far away from the gates (before train to E gates and before passport control) and the Panorama lounge is... poor. No toilets, 2 warm food options, 2 or 3 cold food options. The last few times I was there there wasn't anything sweet to go with coffee (important! ) - so really not much fun, except for the view.
Still, I'm wondering why QR is still using this silly lounge, there must be better options (ok, Emirates is not going to let them in...). Considering they fly the 787 from ZRH which really has a fantastic C product, the lounge situation doesn't quite live up to the rest of the experience.