The score says how it ended. xG says how it should have ended: it is the sum of the chances each shot was worth, not an opinion about the game.
A draw, but Le Havre created more (1.03 xG against 0.48) — points dropped.
Le Havre: −2.4 for the season (18 in the table). Angers: −0.4 (7). The gap between points and xPTS is built from matches like this one.