I watched the first 40 mins or so. Lots of interrupting each other, but the parts that I saw wasn't the "complete shit show" that I saw on many social media feeds after is was done.
What I did notice is that Biden was seemingly flustered and when that happened, what I believe is his true character comes out. When he got flustered, I felt that he reverted to a wannabe tough guy who is used to always getting his way by intimidation. A couple of times, Biden sort of was like "come on man, I'll. . . " then awkward pause where he seems to have caught himself, then "just shut up". Sort of like when he was confronted by the blue collar guy about firearms. True nature coming out, no matter how his handlers try to prepare him.
Another thing I noticed was Biden appealing to emotional pleas to counter data and facts. Again, Biden seemed to have been coached on certain things. Even a few times, Wallace caught him and was like "that's not the question".
To clarify, I don't care for Trump, but like a lot of what he has done for this country. Is he "Presidential"? I think he could act better, but it's not his actions that matter, at least to me. It's the results. But after all of that, Biden is 100000% worse. I don't see any positives in Biden and I would bet that well over half of the people that support Biden do so just because of their irrational hate for Trump, while not knowing anything about what Biden would do for America.