And just because it's exotic, that doesn't mean it's not useful to think about. My impression from some rather limited exposure to quantum chemistry is that the molecule hits a sweet spot where it's both not completely trivial to solve, yet within the capabilities of present-day quantum computers, meaning that it becomes a useful benchmark for algorithm development. See e.g. https://arxiv.org/abs/2303.07417 (which covers Hâ‚„ and LiH) and the references therein.
