Okay, I watched the thing. Did you get the idea that about a third of the way into it, Chris Wallace looked like he wanted to get out of the news business and go make BBQ Bacon Crispy Chicken Sandwiches at Burger King?
I suppose many/most Trump fans liked his I-Don't-Play-By-The-Rules bluster. He succeeded in rattling Biden a few times but I think it was obvious to any watcher that that was the game and that being loud is not the same thing as being right. The fact-checkers are playing Catch-Up right now but it looks like Trump got ten things wrong for every one of Biden's.
Seems to me Trump is going to lose support for his unwillingness to genuinely condemn white supremacists and militia groups — he basically told them to "stand by" in case violence is needed — and for all his rambling about a fake count in the election. But he's behind, he needed to get some Biden supporters to swing his way and I don't think he managed that. He just proved that Donald Trump is exactly what his opponents say he is. And Biden did a lot to dispel the charges that he's slow, has no endurance, etc. Whenever I've stumbled onto Trump-supporting chat boards lately, they all seemed dead certain that he would never show up for the debate at all.
It was also effective that Biden kept talking directly to voters and reminding them that this election is about them and in their hands. Trump kept talking to Chris Wallace. My take is that what most people who watched will take away from the debate is that it was a mess and a "shitshow" and a disgrace on many levels…and that wasn't because of Joe Biden.