During the classical era of music, was opera enjoyed by commoners?

I was recently watching Amadeus and there’s a scene where Mozart is watching a performance of his opera, Don Giovanni. However, whereas we see Mozart personally conducting his opera at a grand theater for the wealthy aristocracy, in this scene he’s watching a more “dumbed down” comic version being performed at a much simpler theater for an audience of what looks like commoners.

During the classical era, was opera also enjoyed by common people? How different were opera performances for the aristocracy and commoners (if they were in fact experienced separately)? Did some composers write works primarily for common people as opposed to more influential patrons? Were these opera performances for the common man and woman looked down upon in high society circles?