I only watched a few minutes of the interview, seemed clear he was engaged and ready. My issue is that he had over a week to prepare (and rest) for the debate at Camp David and none of that mattered because it was a late night debate, and clearly he couldn't handle it. Pointing out that he's fine at 3PM is irrelevant going forward because nothing of public consequence happens at 3PM. I'm sure he's engaged and does well during his daily duties as president, by all accounts he's sharp in meetings but again...it doesn't matter if he can't do anything beyond those times.
We're nearly 4 years into a presidency with a president who doesn't regularly communicate a message, or combat republican messages. One reason republicans hate Obama is because of how much time he spent mocking and belittling their "ideas" on a near daily basis as president. That shyt keeps people informed and keeps your side engaged. Biden is not capable of doing that. We should have a candidate/president out here talking about Project 2025, abortion, Putin, Supreme Court corruption, etc.