During the run up to the election Trump was holding regular rallies and traveling constantly - then he suddenly stopped and relaxed. I remember thinking the sudden shift was really strange and couldn't understand why his entire demeanor would change so suddenly.
In retrospect I believe Musk and the other party leaders sat Trump down and told him he had nothing to worry about. Between Russian propaganda, Musk's use of Twitter to spread his own Nazi propaganda, and the takeover of the the serious news platforms by oligarchs they knew they had it locked up. When you add in the black-box voting machines sold by companies owned and operated by major Trump donors I don't think Harris had a chance no matter how people actually voted.