Another similar tool, with very different visualization. https://projects.fivethirtyeight.com/trump-biden-election-ma...
That's going to be a fun toy on election night, as state results come in.
Not this year. With mail-in ballots, the ballots won't necessarily be finalized until a week or more after the election.
Its necessary due to COVID19. But it will be until multiple days after the election before we know the true winner. A large number of states will certainly be called on election night (because many states, such as California, are far from competitive).
But the battleground states may take some time.