This is the rules of the play in
https://www.nba.com/news/nba-play-in-tournament
Loser of 7 and 8 will face the winner of the 9 and 10.. So if the Lakers will end at the top 8 and they loss to the Suns, they still have one shot by playing the winner of 9 and 10.. So there's an advantage in finishing at 8 rather than 9 or 10.
The Lakers will need to win against the Pelicans on their last game, otherwise they'll fall below the 10th seed again if the Kings and Warriors win theirs. As far as I'm aware of, tie breakers in the NBA are head-to-head record first. So, that means the Lakers are below against the Warriors (1-3) and the Kings (0-4).
The Warriors and the Kings on the other hand is tied against each other this season, so I think there is another criteria for this to determine who's going to be in the 8th seed. I have been following the games from these 3 teams as things are getting interesting between them.
That's gonna be tough for the Lakers as the Pelicans are having a good momentum now, they were 4-0 on the road and the home game is their last game. I'm sure they'll still continue to play hard as they don't want to have a record tied with the Phoenix Suns, owning that number 6 based on record is way easier. If the Lakers will drop to the number 10, that is not good for them especially if they'll face the Warriors as Curry would not allow to lose, so it will be a 50-50 battle.