A recent bombshell I found regarding the importance of personality. It matters, but not in the sense of being constant for any context of social interaction. Basically, if you meet someone within the first 5 seconds, and they start turning their head to the side or looking disgusted/surprised, then they don't find you physically appealing. They may still find commonality with you, or you may share a class/social group with them. However, at that point, they won't care about your personality. Even if you became friends with that person, personality does not take the friendship into a relationship, it only prevents the friendship from failing if it's good or severs it if bad.
In the context of dating, personality can turn a yes into a no but rarely a no into a yes. An exception is when people who were friends for a long time eventually started dating is, for example, the other person (or both) don't have options in their social circles and so they circle back to some of the people they knew to get to know them deeper.
It's been a tough pill at first, but now I recognize the importance of how physical appearance plays a role in dating. I've been obese much of my 20s and used to think it was my personality and lack of confidence, even though many people said I was confident and kind. I'm focusing on losing weight and working out to improve my physique before trying my luck in dating again.