>>381043217
8k is a bit much, a single 4k texture is nice and really all you need for even a complex atlas. Learn how to use stuff like smaller detail or decal textures, Poiyomi has excellent support for those.
A single 4k texture with a smaller 512px decal is what my main avatar has, and yet it's still only 1 material. Poiyomi makes this really easy and convenient.