Hmm, how can I test if Emacs is actually loading some .eln and not the
.elc files?
I have been using describe-function (C-h f) for this It can tell us if a given command has been natively compiled (or byte-compiled or neither of these) for the present session.
Aside: I would first check `native-comp-available-p' to confirm the build has the native compiler and that the Emacs instance is using it.