I have tried to read all the replies here to get a conclusion, since I didn’t watch the match myself and couldn’t judge where if the extra time added is fair or not in this game. However, you have explained that it is not the case and the extra time is over exaggerated from the referee which means one thing, corruption! Unfortunately, we even with the VAR and many technologies nowadays used in football and other sports, corruption still exist with the observation of millions of people. It is a shame for France as they are the organizers of this competition and they could face penalties for this, beside that it is so discouraging for other teams next time to play knowing they would lose because of such manipulation, added to that other future organizers would do the same to win most gold medals by cheating and fixing matches.
The problem we observe in football, many times is the lack of punishment against the corrupted referees, which encourage them to take more bribes next time and fix other matches in the future.

When it comes to affecting our outcome due to fixing matches, it is an obvious negative point, even when you win due to such discouraging events you won’t feel good or comfortable about it, since you know if it happens again, you may lose instead of winning. Sportbooks can’t do anything about that.