Newborn in restaurant?

Re

I’m due late June and we have a family trip (8 adults and 5 children/babies total) at the end of July. I’m not necessarily worried about traveling cause it’ll only be a four hour car ride for hubby, me, and baby. However I just realized we won’t have th option of sitting at a booth with baby because of our group size. So what would you do? I don’t necessarily want to wear baby while trying to eat and I don’t want baby just out in the open. So that leaves me with keeping baby in the carseat( we have a nuna pipa so we have a extra barrier from germs with the dream drape). Do you put the car seat on the floor? A chair? A high Chair??