I always thought new tyres go to the front.That's what I believe too although it seems that the worse tyres should be on the front purely so that you can feel when you are losing traction. If fitted to the rear, it is believed you could lose the rear on a bend.
https://www.uniroyal-tyres.com/car/tyre-guide/tyre-knowledge/good-tyres-on-front-or-rear