Hrm. Cycles. I think Moon Hoax may have made a lean towards "Moon Landings were real but what did they find there that they are covering up?" but it doesn't seem to have extended into a full-length lunge.
In psuedoarchaeological circles, the go-to for hyperdiffusionism was "Aliens!" for a while, but in the past decade or so seems to have drifted back into an older and more generalized "gods/demons" sort of thing. This more-or-less paralleling the way UFOs shifted a decade or so before that from physical craft visiting from physical extrasolar planets to immaterial energy beings/spirits from a higher plane.
Flat Earth, on the other hand....the largest remaining collection of Moon Hoax around is just one chocolate in a whole big box of space denialism, science denialism, and the pretty-much required anti-vax, climate change denialism, alternate medicine/homeopathy woo ball.
(Sorry, posting on a full set of meds so expect I'm rambling even worse than usual).