They are still talking over each other. Chief difference:
Trump tends to snarl, Biden talks evenly and steadily.
And apologized when he called Trump a 'clown'.
Biden is now talking directly to Americans and their families.
Both men are now dissing each others family.
Moderator seems to be losing his temper. He reminded them about not interrupting each other. Pointed out to Trump that he's been doing most of it.
Now it's onto race issues.
Biden calls out Trump on "very fine people'. And the church/bible scene.
Trump reminds Biden when Biden called black people 'superpredators' years back. Trump is praising how many police love him. Now he's talking about sending in the troops to 40 cities. Apparently all Democrats are 'radical left'.
Biden is talking about 'bad apples' on the police, and gathering all sides to discuss how to change things.
Moderator: shuts them up, and talks about racism, Trump's shutting down racial sensitivity training.
They are now arguing about who's the biggest fan of law and order.
Moderator: Homicides in America, whether Democrats and Republicans. Trump and Biden are both worried about the suburbs.
Moderator: changing policing, how do they feel about BLM?
Biden talking, Trump interrupts complaining that Biden can't even say 'law and order'.
Moderator gets them on to urban violence. Asks if Biden has ever called the leaders of Portland, etc, and asked them to do something. Biden says no, he's not an elected official, he has no standing.
Trump says he could call out the National Guard, that the right wing isn't the trouble, that he only sees Antifa and lefties.
They are now arguing about what Antifa is.
Why does either think they should be elected?
Trump claims he's the best President, ever. And, thanks Obama and Biden for giving him all those judgeships to fill.
Biden starts, Trump interrupts again, Mod smacks him down, says Trump's people agreed to the rules, Trump interrupts the moderator. (Honestly, if our Admin were running this, Trump would be out on his ear.)
Trump is now insulting Biden's son (out of turn).
Mod shuts him down and moves to climate change.
Oh, God -the Moderator is actually asking Trump about climate science. Trump goes on a rant about forest management and how we need to manage the forests more. Because the economy is doing well, otherwise.
Trump acknowledges that he lowered the standards for car
emissions to lower the prices.
Biden, on his plans for lower-emission fuels, charging stations and new tech.
Biden seems to lose it a little, fortunately masked by another Trump interruption. Biden recovers, and points out that the restructuring he would cause would create a lot of good paying jobs.
Trump is carrying on again. Biden is asked his final question, about the economy. I think the reason Biden had problems is that he has to think over the sound of Trump butting in and talking over.
They are talking about ballots. Biden points out that no reputable agencies believes there is fraud. Biden begs people to vote in any way that they can.
Trump starts with the paranoia again. Everyone is against him, and cheating. And, the voting fraud again.
Now they are both shouting. Moderator asking about not fraudulent ballots, but incorrectly filled out ballots. Biden gives a reasoned answer, Trump can't shut up.
Moderator points out that poll workers aren't even allowed to open the ballot envelopes before election day.
He asks both men if they are willing to wait for the ballots all to be counted, and not declare victory until all votes are in.
Trump is telling his people to go out there as random 'poll-watchers' in polling places. Apparently some have already been thrown out. He makes no promises.
Biden says of course he'll wait til all ballots are counted, because that way he'll be the President of all America.
Trump is more or less shamed into grudgingly going along.
TL;dr It was undignified and a trainwreck according to commentators afterwards. Apparently a lot of people just turned it off.