UCL trophy is one of the biggest trophy in football. No doubt that the teams who can reach the final are strong teams, they already eliminated many big teams from varied top leagues in Europe. This season Inter Milan and PSG could reach the final round, they are the strongest teams in UCL this season. By the way, I don't think they will tend to focus on the defense line for the final match. All the lines are equally important, there is no line to be more priority. I doubt that they will tend to have a penalty shootout because it mostly depends on the luck factor. If it is possible, it will be better to try winning the match in the normal time, it is too risky to rely on the penalty shootout. In addition, since both teams have good attackers, I'm sure they will be many goals in this final.
My prediction is that the match will not run with more goals because I am sure both teams will play carefully and it is also possible that the match will continue until extra time. PSG and Inter Milan are strong teams at this time because both managed to eliminate their opponents before reaching the final round, but if you look at PSG, they face such tough competition before reaching the final round like now. It is better to win the match in normal time because the penalty shootout is very much determined by the quality and mentality of the players.
This is a difficult match to predict because both teams are equally ambitious to get the trophy. PSG is trying to create a new history in the Champions League and vice versa with Inter Milan who are trying to add to their collection of the fourth Champions League title.