However, as you can read above, that’s a theory that Jordan Peele has given a firm, but polite “nope.”
It’s not the only question that he’s shut down about Us either, as Peele previously declined further clarifying the fate of the Tethered.
Jordan Peele’s body of work is one such canon that falls precisely into that wheelhouse, and his 2022 movie release Nope is already inspiring interesting interpretations.
There are just some universes that lend themselves better to the creation of fan theories than others.