As suggested by the name, Google is responsible for the data streamed as Photorealistic 3D Tiles. There is a known difference between Google Earth and Photorealistic 3D Tiles, as they do not include the most detailed levels of detail in the latter dataset. Check out Ashley’s answer here:
In general, you can prompt higher levels of detail to load by lowering the Maximum Screen Space Error. But it’s likely that in this case, you’re running into the limit of the Photorealistic 3D Tiles dataset.