By default the End key shortcut pushes the selected object in the viewport down until it “stands” on the ground plane. Usually that is working fine, however, it seems this feature is not always working (correctly). I noticed that when I put a large (camera) blocking volume above the ground plane, so that the object is above the ground plane but below that blocking volume, and I hit End, then nothing happens.
However, when I move the object above the blocking volume, and hit End, then the object “falls down” so that is aligned with the blocking volume – as if that would be the ground plane.
Is that a bug or a feature?