At the time, WebGPU is more limited than WebGL regarding the number of vertex buffers you can use in a shader.
The main mesh has 10 vertex buffers whereas it is currently limited to 8 in WebGPU:
However, only uv is used, so uv2/3/4/5/6 can be removed:
So because of the limitation of webgpu, some models do not support rendering?
It’s only temporary, that’s because Chrome does not currently report the true limits of the GPU (I don’t know when it will be fixed, though).