What's the sense in publishing your PWA in the Play Store? Chrome already prompts the user if they'd like to install a PWA shortcut when you visit the site. I ask because it costs $25 and while I have a lot of time on my hands I'm a cheap ass.
We've trained a generation of users to look for apps in app stores. I blogged about this here[0], but having your PWA in app stores means more users for your app.
[0]: https://debuggerdotbreak.judahgabriel.com/2018/04/13/i-built...