Second place brought Biles her sixth Olympic medal, and she also won 19 world titles between 2013 and 2019.
She has reached all five individual finals in Tokyo and is undecided on whether she will compete in her next event on Thursday, when she will attempt to become the first woman to retain the Olympic all-around title since 1968.
“We’re going to see,” she said. “We’re going to take it a day at a time and see what happens.”
Jordan Chiles, 20, replaced Biles in the women’s team final, and said: “That was a huge thing. Those were definitely some big shoes that I had to fill and I’m very happy that I was able to do that.
“Yes, she is the GOAT. I was able to show the world that not only can you fill amazing people’s shoes but we also did this together as well.”
Team-mate Sunisa Lee, 18, added: “We were all so stressed. We honestly didn’t know in that moment. She’s freaking Simone Biles. She carries the team basically.
“When we kind of had to step up to the plate and do what we had to do, it was very hard and stressful. But I’m very proud of us because we did that.”