>Git could be "conflict-free" with a simple `rand(ours, theirs)`.

This would still be order dependent, and different replicas would not converge.

Git is unambiguously not a CRDT, and adding extra rules on top of git to try to turn it into one doesn't make git one, even if you succeed. You can do that with a pencil and paper, but that doesn't make paper a CRDT.

`rand` wouldn’t work because all peers must reach the same state without coordination.

This is definitely not true.

Are you open to understanding why this isn't true? If so, I'm happy to help you come to the correct understanding; please ask whatever questions are necessary. Otherwise, then, well, okay!