Yeah you’re right! This is a beautiful render from Unity.
I think a lot of it comes from using Baked lighting. With the lighting window, you can choose to do a lot of complex lighting calculations if you make objects in your world static i.e. tell Unity you pinky promise not to move things 😉
I like this blog post from Unity and think it does a wonderful job explaining the relevant concepts.
Yup, Unity totally can make some amazing scenes. The trick is really tapping into Unity’s Lighting window just like Alda said. With static scenes and the right lighting, Unity can take all the time it needs to create lightmaps that have proper reflections and indirect light bounces and these lightmaps will really make your models come to life just like the image you shared 🙂