Earlier quoted context omitted.
I'm running a small service, sub 150 users, no online signup kind of business, B2B. Small EU country. 95% of users ask 'do you have an mobile app?' in first 5 minutes of onboarding. Telling them how to install a PWA (and what it is and so forth) is an uphill battle. Unfortunately App Stores rule the non technical crowd.
Why do they need to install a PWA? We do mobile friendly Web UIs, that is enough. Their customes, employees, go to the respective company website, get a responsive UI for their device, done, the services require to be online anyway.
Just like apps in general, PWAs are mostly a mobile heavy modality. Bookmarks and the browser is largely still fine on laptop/desktop, but even there you see the app design language start prevailing with things like bookmarks and “recent sites” being presented like app icons.