A vast and branching labyrinth

"Do we need to find another place?" Qing Xue asked Ye Chen.

Seeing that four teams had already entered, Qing Xue suggested to Ye Chen that they look for another place.

"No, finding one is already very difficult, so we'll stay in."

Ye Chen wanted to stay in because they had already found it, so there was no reason for them to go looking for another place.

"After all, it's not certain that they will be able to get out, we still have a 20% chance, whoever is quickest will win".

Ye Chen said that they still had a 20% chance.

"You're right, so you want to take that 20% chance?" Qing Xue asked.

"Of course, I'll take it, let's give it a try," Ye Chen said to Qing Xue.

"Okay, let's give it a try, I'm also curious if we can catch up and get it," Qing Xue said.

Qing Xue was also interested in this, among all of them, who would win.