Hi class,
I have watched the Super Bowl since I was a little kid. Although I am an avid football fan, I really looked forward to the commercials. After reviewing Super Bowl ads from 2017-2021, I noticed most of these commercials were beer, food, cars, or a new product being introduced. With that said, the general strategy has always been to be funny, and it hasn't changed Bringing humor to viewers tends to make the product more memorable. Now it's the expectation. Everyone is looking forward to the quick laugh during the breaks.
One thing I did notice is last couple of years, due to current events, some of this strategy has focused on support. Standing together and showing support for the current situations happening today. This strategy can bring brand loyalty just based off beliefs or political views. These brands are making it known that we are all in this together.
Overall, the commercials haven't changed too much in the last few years. Things will vary each year based of fads, trends, or current events.