The "bring back" here is referring to Mozilla specifically which used to support them and then stopped.
How does a browser with 10% marketshare somehow make a difference regarding adoption?
Maybe you're on iPhone AND that's the problem?
Here is an example https://mdn.github.io/pwa-examples/js13kpwa/
You should be prompted to install or add the app to your home screen, depending on the platform and browser you're using.
Another big example of a pwa I use is Twitter on the desktop.
It's really a UX thing.
So glad it's getting more attention.
Instead a PWA it's more like a WebView/Direct access that uses the main browser with some extra APIs that a webpage doesn't have, but that's it. It's a lot safer as you don't need to install another version of chrome
The lack of mobile adoption compared to native apps, websites using notifications to spam users, the difficult discovery, and the lack of a huge advantage on desktop (window compared to tabs, sometimes a desktop icon) really hindered their adoption. I use zero PWAs today, and I don’t know anyone who has either, even on Chromebooks.