Bit of a shameless plug: in August I built a demo [0] for our latest 3DGS compression paper (called KISS-GS). You can explore some standard Gaussian splatting scenes at different compression levels, see what breaks at really low bitrates, like 0.5 MB.

Scroll down the page a bit to unlock the controls under the viewer. I find the attribute toggles (for opacity, scale, rotation and so on) great fun for building an intuition on how splats and SOG compression works.

[0]: https://fraunhoferhhi.github.io/KISS-GS/