Just yesterday, I happened to skim past an old QI in which it was asserted that all elements except H and He are classified as "metals" by astrophysicists.
(Confirmed by a quick look at WIki.)
I certainly remember chemistry/physics lessons in which it was claimed that H was somehow more of a metal than a non-metal. So this is not surprising.
Does "metal" now have to mean "not He"? (Until someone demonstrates that too has metallicity.)