When we study history, we tend to hear about its major disasters and tragedies because those tend to stand out as the most historically significant parts.
Although it's true that 2020 has been pretty light on fun moments, we can bet that none of the few that did occur will be studied by future generations in 30 years. The biggest stuff in a time period will have the clearest impact on the world around us and that stuff tends to be bad.
But of course, that doesn't mean that there isn't anything worth celebrating in our history. And as we're about to see, that also doesn't mean that nobody bothered to take a picture of those moments.