Yes, you are right. Playing the first match in France will give Paris Saint-Germain an advantage. Also, statistics show that the advantageous score in the first match usually has a better effect on the return match. Therefore, Paris Saint-Germain will definitely want to win the first match at home and will do their best for this. The coach should work on Liverpool's weaknesses and do exercises in this direction. I feel that it will be an enjoyable match and will make us feel the pleasure of the Champions League.
If Paris Saint-Germain can take advantage of the first leg to win the match, it will be much easier for them to qualify for the next round. But the problem is that Liverpool has a fairly dangerous attack line so Paris Saint-Germain must be able to dampen the attacks that Liverpool players are trying to build. A victory with a small score will not give Paris Saint-Germain an advantage, especially if the match ends in a draw.
It is difficult to predict this match because both teams have the same chances, only Paris Saint-Germain is slightly more favored because they are playing at home. It is interesting to watch the match because both teams will definitely show their best qualities to win the match.