[ConservaTeen]

Harry, I know I'm a teen (who'll be voting for President Trump November 3 😀), Biden can't do anything until he steals the election - err, sorry, I meant win! 😀

At this time he's a nobody, so he can't end the filibuster.

[Eleutheria5]

Even if he became POTUS, he would have no control over either house of the legislative branch of the federal government. He could urge, suggest, or beg them to eliminate the filibuster, but he can’t unilaterally make them do anything.

[nhbob1]

Even if President he could not end the filibuster. The authority for that belongs 100% to the Senate.