And is it the same game for Model3DTileContent.fromGltf?
I wouldn’t ask if it worked… : ) Some old discussion here Add 3D model using Blob object
The Blob object represents a blob, which is a file-like object of immutable, raw data; they can be read as text or binary data, or converted into a ReadableStream so its methods can be used for processing the data.
Not sure about the encoding