Will a defeated Joe Biden accept the results of the election?

Addendum: (DavidL) A clue from the late Associate Justice Ruth Bader Ginsberg, her last attributed statement, from Nina Totenberg, National Public Radio:

“My most fervent wish is that I will not be replaced until a new president is installed.”

Ginsberg makes no mention of elections, or inauguration. Rather she uses the word install. As if even a re-elected President Trump should await upon Congress to impeach him rather than name her replacement.