This new version has many improvements, and more configuration options. If you’re just starting with the PWA module, once you enable it you’ll have a PWA that is installable on mobile and a full score on the PWA lighthouse audit. You can try it out on simplytestme.
Initial BETA release of module. Provides basic offline functionality using Service Worker and manifest.json
Give this a try but be advised that there might be major issues that the development team hasn't uncovered yet. Please report any issues as it will help us release improvements.