The match is best out of 14 games, which means that it finishes as soon as one of the players reaches 7.5, which is possible in 8 games. It's also possible (albeit unlikely) that one of the players forfeits the match in even fewer games
If tied after 14 games (7-7), the match will be decided in tiebreaks
https://en.wikipedia.org/wiki/World_Chess_Championship_2024
Related questions:
Here's all 21 possible scenarios for the final 3 games https://manifold.markets/ChinmayTheMathGuy/exact-result-of-games-12-13-14-in-w
Pre-registering my take here so I look like a genius or idiot (but most likely genius) : Gukesh wins 7.5-3.5 by drawing or winning game 11. Ding is subsequently sentenced to 5 years hard labor in a Chinese gulag to strengthen his character