I think the issues are much more fundamental than you suggest. They’re societal and they’re subcultural within the apps. For one, people are much pickier now than they’ve ever been. On the other hand, the dating apps have this filtration problem: those who successfully form a relationship quit the app, possibly for life.
Unfortunately, it’s not random when people form successful relationships. Some people are just much better at it than others. This is where the filtration problem arises: over time, the concentration of people who aren’t good at forming relationships increases, as these are the folks who stay in the apps the longest. This makes it harder and harder to find a relationship through the apps, and frustration ensues.