Indeed, they destroyed Le Havre 4-1, but don't get overly thrilled. Le Havre equalised, and PSG appeared wobbly for a short period. That is not a good indicator. Mbappe's absence is really evident. Their onslaught loses edge without his continual threat. They scored three more at last, although it was scrazy rather than overpowering
For the Champions League, this presents major questions. Le Havre turned up a flaw. Ramos is hurt; Mbappe's MIA; and now PSG seems weak. Ligue 1 could be a stroll, but Europe is another animal entirely. They are in peril if they cannot locate a consistent goal-scorer. Luis Enrique must solve this quickly; otherwise, PSG's aspirations for the Champions League would be dashed
PSG will continue to dominate Ligue 1 even without Mbappe in their squad, PSG has absolutely no dependence on Mbappe in the domestic league because they are the strongest club there. Other players took turns scoring goals for their team's victory, a 4-1 victory when destroying Le Havre proved that PSG were still able to dominate the match.
PSG always struggles when competing in the Champions League, even though they are still strengthened by Messi, Neymar and Mbappe, they are unable to make PSG win the UCL trophy. Now that all three players have left the club, the concerns for PSG will grow and they will struggle even more to compete in the UCL.