Exactly. Which leads straight to the contradiction when saying that the universe was only 10cm in diameter at a certain early time. If there’s no end, how does it have a diameter?
The portion of the universe we can observe was 10cm in diameter. If there's more it's outside our light cone and we can never reach it or be affected by it, so it may as well not exist. The observable universe seems to be fininte, but seems to act like a finite portion of an infinite universe.