PSG knocked out Liverpool and Arsenal. They are one of the best teams. Inter though has knocked out both La Liga and Bundesliga winners to reach the finals. Statically PSG have never won the champions league and Inter Milan has won more than all french teams ever combined. But most of those Inter's win were from another decade. Inter did reached the finals two years prior too but what's more important is current form. Both of these teams has eliminated one of the top teams in Europe and undoubtedly are among the best. But deep down inside, I believe PSG would win the title for the first time. It could be bias or a preference but the bookies are also preferring PSG.
Many people are rooting for PSG to win the finals of the champions league competition and to lift the trophy for the first time. They have fought so hard to have reached this stage in the competition and many of us wouldn’t have thought they could come this far with the big teams involved and how they performed big in the competition also. I think it may just be an opportunity for PSG to win the champions league trophy for the first time in their history, they won’t afford to miss this opportunity now that it is within their discretion.
Inter Milan are a very strong team and no bias to that, but I don’t think they may have the big support that PSG are having now, maybe because everyone wants them to win it and not Inter Milan since they already won the trophy before. This is just like having good feelings for all club and want everyone to have a taste of the trophy too. Regardless of all this, the better team with the best display of quality football will eventually win the trophy.