Rigidbodies collapsing when stacked

Godot Version

v4.2.1

Question

I want to be able to stack rigidbodies ontop of each other without them collapsing like pictured here, and to keep a somewhat realistic physics/gravity:
collapse
the objects currently have 0 scripts, physics settings are all on default.

I managed to write a script to freeze the bodies when under a too high column of object but it is quite performance hungry, and is just a band-aid fix.

You could try switching to the Jolt physics engine under project settings / physics.
The default Godot physics are kind of work in progress and a little wonky when it comes to stuff like this.