Every team has a different way of building their team and indeed PSG chose the wrong path because they didn't want to go through the process and rely on the power of money they have to buy star players and hope they will achieve achievements on the European stage, that's the wrong thing and Even Mancheter City used to be like that before they finally went through such a long process that it was only last season that they managed to become CUL champions.
Likewise with PSG at the moment, especially because in the French League there are no fierce competitors so PSG cannot measure its strength.
PSG's way of building team is good considering the high quality of players they are signing in their team, the only problem they are having is the coach; they are yet to have a qualified coach that will lead them to the Champions League victory the way Manchester City signed Guardiola and they are successful.
I think PSG need to stop relying on one man (Mbappe) because if he leaves the team, they will struggle to adapt and they will lose plenty matches in that process.
Manchester City not get difficult opponent team on 16 phase round but its not guarantee they will have easily opponent on quarter final until semifinal phase, no doubt with Manchester City opportunity will easily qualify to quarter final but if face with top teams such as Bayern Munich or Real Madrid I don't sure with The Citizen for defending their Champion League tittle for this season. Have good news after De Bruyne recovering from injury but still have problem with Erling Haaland has possibility to recovery before first leg match against Copenhagen three weeks later or not.
Man City have easy opponent in the knockout stage, but that doesn't mean they must qualify because Copenhagen is not a team to be underrated considering their group stage performance.
Erling Haaland is most important part for Manchester City and has small opportunity without him will get highest phase in this season, if can't recovery as soon possible I doubt with their opportunity will lead until final round for this season or not.
Haaland is not the most important player in Manchester City's team, he also contributes to the team's success in the last Champions League victory; If the team have him, it will be an added advantage but without him, they will still play well since De Bruyne is back from Injury.