They simply don't work as well as non-web apps. People continue to insist that they do, but from my experience, they just don't have the same smoothness as a native app to show that it's not a web app.
a native mobile app is a gigantic time, productivity, and cash investment. if a business can get most of the value from a PWA, they will be far better off investing that time and innovation into other parts of their business than building a native app for the "smoothness"