BUG? 3D Tilesets and Atmosphere cant go along?

There are multiple developers complaining in various posts about issues related to Google Photorealistic, which appears to be causing errors.

Reproduction 1: Cesiums Sandcastle Examples come with the issue already
Add a point entity to SANDCASTLE GOOGLE PHOTOREALISTIC example from ION Website under My Assets (which should definitly work) like this:

// Add a point entity
        viewer.entities.add({
            position: Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
            point: {
                pixelSize: 10,
                color: Cesium.Color.RED,
                outlineColor: Cesium.Color.WHITE,
                outlineWidth: 2
            },
            label: {
                text: 'Point Entity',
                font: '14pt sans-serif',
                style: Cesium.LabelStyle.FILL_AND_OUTLINE,
                outlineWidth: 2,
                verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
                pixelOffset: new Cesium.Cartesian2(0, -9)
            }
        });

…and you end up under the globe after double clicking the entity, and all the other issues like described here (The Google Earth 3D tileset from ION is hovering over the 2d globe!) and here (Atmosphere and 3D Photorealistic do not work together?)

Reproduction 2: Combine the Cesium Sandcastle Examples, they dont work!
Combine SANDCASTLE GOOGLE PHOTOREALISTIC example from ION in My Assets and the
SANDCASTLE ATMOSPHERE example, they will crash with a typeerror which makes the globe stuck/freeze!

Follow on Github: BUG? 3D Tilesets and Atmosphere cant go along? · Issue #12111 · CesiumGS/cesium · GitHub