Did you instance that whole board array there with that new Replace/Create functionality?
No, to be clear, there is no Array, I just instanced the Cube on the Vertices of the Plane,,the Plane looks like this:

The blue Node only randomizes the rotation (Attribute) of each of the points (Vertices)…All those points have a rotation, scale and position (Attributes), a bit like Origins of the Instances that are going to be put there. The Replace/Create was the default in 2.92…it’s just that now (in the future) we (will) have more possibilities
Exaggerated:

…and you would have all kinds of combinations of instances from geo-nodes, correct?
That is correct!