They work. I don’t know why people like to perpetuate that dating apps make suboptimal matches. Dating apps match people up on some basic metrics. It’s up to the people to form connections. They dont have a magic ability to keep people from long term relationships.

If anything people might be more picky or idealistic because dating apps exist, so they’ll likely not commit because of their high standards or FOMO. But that’s more of a society issue not the dating apps themselves.