I just spent the last three weeks in France. The only time I was in Paris was to change trains. I did spend time in Colmar. Mulhouse. Beaune, Lyon, Carcassonne and Toulouse.
Here's what I experienced:
Every restaurant, hotel (for their breakfast room) and museum wanted too see the Pass Sanitaire. I heard very little English in some of these places so many had no idea what the CDC card was. I have the pass.
Masks were mandatory on public transit and it was enforced. The same went for stores. About half the people wore them outdoors. (I'm now in Manchester, UK and very few people wear masks even where they are supposed to.)
Contactless payment is encouraged.
English was spoken, at least a little, by most people. Everyone was friendly and helpful. Except for SNCF staff who all seemed grumpy.
My French isn't bad. ( I speak it better than I understand it.) I've been told that my pronunciation is goid. About half the time, when I asked a question in French the response was in English. For those times I was having trouble understanding, the first thing I was asked is if I spoke English. A lot different from my first trip to France 30 years ago when no one spoke English.
This was just my experience. Yours might be different especially if you are going next year.
A tip--if you are into cars, make a stop at the auto museum in Mulhouse. Over 400 cars. There is a massive train museum butcI didn't go.