Change Unity's default material for newly created SpriteRenderer objects

Question

By default, Unity adds the Sprites-Default material to any new SpriteRenderer object / component in the scene.

However after switching to the Universal Render Pipeline (URP) and enabling the lighting workflow Unity starts to automatically assign the Sprite-Lit-Default to everything instead.

My question is kind of two-fold but bassically ends up as a single answer hopefully:

1. After switching to Sprite-Lit-Default, is there a way of switching back to Sprites-Default as the default assigned material?

2. Even better, is there a way to set any (eg a custom made material) as the default that Unity uses when a SpriteRenderer is newly added to the scene?

Appreciate any help on the subject thank you!