The debate covered important questions of national significance, including whether Trump had intercourse with a porn star, who was better at golf, each of their physical health conditions (including Trump's height and weight and apparently cognitive ability), and even featured a modern use of the word "malarchy". They might as well make a short, catchy intro for it, break it up into episodes, and advertise it as a sitcom.
The debate was completely useless. The only thing I got from it was that Biden's brain still works but his body doesn't, and Trump's body still works but his brain doesn't. There were some slight mentions of hot topics and each of their positions on the subject, but there was so much jumping around and avoiding questions that it was not very helpful.
Honestly, I think one of the things Biden said should just be applied to both candidates when determining who to vote for: "Just take a look at what he says he is, and take a look at what he is." (I believe this was used in context of Trump's weight... lol) Both of them have served 4 years in office, and both have done stuff outside of the oval office. It's easy to see how each of them would spend their terms based on what they already have done.