People don’t see individual ratings at the end no, just an overall score.
For the scoring system - how much you like the game is only one part. You can dislike a game but still appreciate it has good art/music or fits the theme of the jam well. The scoring system is nuanced!
Please remember to leave feedback when rating games, remember to be kind and positive if you’re leaving some constructive criticism too. Feedback is what really helps people learn and improve. :)