As others have mentioned, Covid was a huuuuuuge boost for the acceptance of cashless payment systems in Germany. Even small business now have card readers and don't raise an eye when you want to pay 7,83 by card.
If anything good came out of Covid it might be this.
I was specifically talking about Germany and its love for cash. It can be tricky to pay with cards in restaurants and small stores. It is a well known quirk.
I can pay by card in chain bakeries and most non chain bakeries around me.
My supermarket recently upgraded their card reader to a model which doesn't take an eternity to process a nfc transaction.
Restaurants are the biggest hold outs and there many which still only take cash (presumably for "tax reasons").