Again, depends how it goes down.
Recall that in 2020 we all went to bed thinking Trump won,

Who's "we all"? No one had called the race for Trump, and every media outlet was observing that there were still ballots to be counted.

Because there are several states that do not start counting mail-in ballots until after the polls close, it is almost guaranteed that in a close election, the winner will not be known until the next day in 2024. If Trump loses a close election, it will undoubtedly be under the same scenario - the race will not be called before mail ballots are processed in the states that wait, and that won't be until the following day at the earliest.

Note that "close" in this context can mean that Harris has won by as many as four points, in the national popular vote. Biden won 2020 with a 4.5% margin in the popular vote.

So in a close election, what does the right do? Meekly accept that Trump has lost a close race? Or insist that he really won and that it was stolen from him again? Does the right refrain from its own rioting only if Harris wins a blowout popular vote by five points or more?