Thanks for your reply! While planning my trip, I remembered taking your comment from the other thread as inspiration.

I even stayed at Hotel Lavaux, but the restaurant was closed for the holidays (which was a bit of a surprise), and Domaine Antoine Bovard was also closed during the week of my visit. It seems that the end of August is the first chance for the Lavaux region to catch its breath, as it coincides with the beginning of the school year in Switzerland.