From his interview with Sporza:
Remco Evenepoel summed up the 4th day of the Vuelta. "I didn't lose a second. Or at least: bonuses, but that's the fate of a big round."
"I don't attach too much importance to it. I would also have preferred bonuses, but you can't want everything in life. The most important thing is that I didn't lose extra seconds."
"It was a kilometer uphill: intensive and specific. I hadn't trained for that for a long time. But I just had to keep up with it and not lose any time."
"Behind me there was also a hole (7"). That is the danger of such an arrival. I think the mission was accomplished."
"We wanted to win with Julian (Alaphilippe), but if you don't have the legs anymore... It was warm and the riding was fast. It was certainly not an easy day and that can weigh on the coming days. An ice bath was welcome."
In the descent after the last mountain, Evenepoel took command. "We were there after that sprint anyway and we knew it was fast and technical."
"Then you are better at the front. At the back you have to sprint and accelerate, at the front you lose less energy. I was just safe there."