https://www.nba.com/pelicans/news/nba-announces-structure-and-format-2020-21-season
"At the conclusion of the regular season, the team with the seventh-highest winning percentage in each conference will host the team with the eighth-highest winning percentage in its conference in a Play-In Game (the “Seven-Eight Game”). The winner of the Seven-Eight Game in each conference will be the seventh seed in the playoffs for its conference.
The team with the ninth-highest winning percentage in each conference will host the team with the tenth-highest winning percentage in its conference in a Play-In Game (the “Nine-Ten Game”). The loser of the Seven-Eight Game will host the winner of the Nine-Ten Game in a Play-In Game, and the winner of that game will be the eighth seed in the playoffs for its conference."