The discrepancy in Germany showed between bars/clubs and restaurants. Restaurants had very little events. You can read up about influenza and alcohol, there is some research and it looks bad for alcohol.
Plus when they were still able to trace stuff, loads of spreading events related to alcohol. E.g. Europe’s first traced superspreading in Ischgl, the après ski capital. I write known as there must have been quite some events before in Italy. Nowhere reached such levels as Ischgl however were returning people were infected at around 2/3 of them.