I think these results in the group stage are reason enough for Real Sociedad to assume that they have a good chance to progress to the quarterfinals. I am not saying they are the favorite, but I am saying they have a good chance.
I also think that way. Even though PSG is very strong in Ligue 1, competition in the Champions League is of course at a different level. Their defeat against Newcastle in the group stage slightly shows that their performance in the Champions League is not very good. Currently, Real Sociedad may not be like last season where they were quite strong in La Liga and were in fourth place in the final standings. But there are still those who think Real Sociedad has a better chance than PSG in the round of 16.
For some reason, I also had doubts about PSG this season, they don't seem ready and their strength is only strong in Ligue 1, but not in the UCL league. Even though they are trained by a great coach like Enrique and have star players, they have not been able to show their toughness in the UCL. Just look at PSG qualifying for the round of 16 through luck only with a difference in goal difference with AC Milan.
I think Sociedad will win the match, because Real Sociedad's game is so solid in defense, very good at controlling the ball, and killing counter attacks through player Kubo.
PSG's performance in the Champions League is a bit doubtful because PSG doesn't seem to have the enthusiasm to play in the Champions League, they are just trying to fight hard to qualify for the round of 16 and look like they are having difficulty getting there, but indeed PSG is in quite a tough team like Milan and Dortmund so that This made PSG have to fight hard to qualify and it was fortunate that PSG was able to qualify with only a goal difference from Milan.
Meanwhile, Real Sociedad is also in a tough group like Inter and Benfica, but Real Sociedad has not experienced a defeat at all, even though this is the first time Real Sociedad has competed in the Champions League, but this club was able to emerge as group winners even though it has the same points as Inter.
Real Sociedad's enthusiasm cannot be doubted and it looks like PSG will experience difficulties when facing Real Sociedad, but PSG experience competing in the Champions League cannot be denied but if PSG cannot achieve unexpected results, it will still be difficult for PSG to advance to the next rounds.