I expect it’ll probably be relatively boring. Trump likely has been coached to hell and back not to say unhinged shit. Of course, he can’t control himself so he’s going to say some unhinged shit, but it’s definitely not going to be to the same frequency and magnitude that he normally is.
Meanwhile, Biden is going to play the “Trump is unhinged, so Republicans please vote for me” strategy, which is going to be unexciting to both Republicans and Democrats.
I think the debate itself is going to be dull, and what will really sway the population is what the media and social media run with afterward. ie, it’ll be determined entirely by who has the more embarrassing slip-up. God this country is fucked