Well the problem is, Trump was under no compulsion to tell the truth, and even answer any given question being asked of him.Trump should be criticized. He sounded like an unhinged loon repeating the same lies, same grievances and same idiocy that he has for the past four years. Zero policy, zero ideas, zero substance.
He enunciated. We'll give him that.
Because it doesn't matter. His followers will swallow everything he says regardless of whether it is actually true or not; that partly explains why some of them still insist he rightfully won the election in 2020 (despite it being debunked so many times it's not even worth bringing up anymore.)
Biden was actually being honest, that is, when he could actually articulate what he was trying to say and not coming across like a senile old codger suffering from post-awareness confusions.
So, really the bottom line is this. I don't think, in the end, the debate really changed anyone's mind. Biden supporters are probably a lot more concerned about the mental health and fitness of their candidate but will vote for him anyway, because the alternative is STILL far, far worse. Trump supporters will still support him of course, because they automatically swallow his bullshit no matter how outlandish, and they now have some seemingly valid criticisms of Biden. Independaent voters probably think both are about the worst possible choice of candidates in history, and it is probably one or two issues- inflation under Biden, or potential loss of freedoms under a new Trump adminstration, that will sway them.