The problem with conspiracy theories of this sort is that they require an absurd level of operational security, which simply couldn't be maintained.

Moon landing? The Soviets don't dispute it, so they're in on it.

Contrails? All the pilots and ground crew keep it hush hush.

2020 election? The Secretaries of State, election workers, ballot printers, truck drivers, all on the take.

This, in a world where people's affairs end up on X within the week.