The short answer is: Yes
Do you have a more specific question about how to achieve a certain effect in this scene? The main thing I see here is that they’re using low poly models with flat shading, and maybe a toon lighting shader kind of effect.
Here’s a thread on flat shading in ThreeJS How to set flatShading or smooth to material (load object with GLTFLoader)? - #8 by sts_1994
There’s also a built-in toon material which you can use or create a custom one based off of it three.js docs