Can the material models in Quixel BRIDGE be used for free?



Thank you for your guidance

When I was making games using unreal engine five ,I found a very useful material library .

That’s the Quixel bridge in unreal engine five .

I want to know if there will be infringement if a game is created using unreal engine five and released to epic games .

In other words, I haven’t purchased these materials. Can I use them to make games and sell them