You assume a god who created the stars could not create the light traveling as well. I think of God as an Author, who wrote the book AND created the backdrop of the book.
No, I don’t assume He couldn’t.
I assert he _wouldn’t_.
Initiating a universe “mid flight” as it were means you have to explain why He didn’t do exactly that 20 minutes ago.
Why would He create something of utterly astounding complexity just to make it all _look_ like it has been around much longer when it _wasn’t_? To wit: why would God lie?