You will have access to HKG J lounges. They are better than the LX ZRH J lounges and not a big downgrade from HKG F lounges mostly populated by OWE.
WHat I don't like in your itin is that you will have to spend over 5 hours in ZRH on the return, sandwiched between two longhaul flights. LX F lounge is excellent, but it is still a lounge that can get boring. Maybe you can get one of the 2 bedrooms.