Of course PSG must evaluate well so that they can advance to the next round because the match will be more difficult than we imagined in the round of 16. Real Sociedad cannot be underestimated, they are one of the teams with strong ambitions to become champions this season, even these two teams have never met before, so it will be quite difficult to predict the final result. Even though PSG has quality players in their team, if they can't make the most of the first leg then they will have difficulties in the second leg.
Real Sociedad is clearly still too far away from becoming champions, maybe their targets in the Champions League are a little different, at least Real Sociedad may want to show their existence first to the strongest teams. Because this is UCL where there are still candidates such as Bayern Munich, Man City and Madrid, of course Real Sociedad is aware that their current strength still cannot exceed that. So for now Real Sociedad will try to risk everything against PSG, so if they are able to beat PSG until Real Sociedad finishes in the top 4 then they can become a promising candidate. But it all requires support that is not small, conquering the UCL is not just about ambition but about the mentality of the players that a club has.