If you're using a PWA on a recent Android phone (built with Progressier or otherwise), you may have noticed that tapping on an app shortcut results in this error:

Unfortunately, you can't. It's not on you. It's not on Progressier. It's on Google. So we'll have to wait for them to fix it. Every PWA suffers from this bug.

A Chromium issue documents this. Although I'm not sure whether this is actually a Chromium bug, a Google Chrome bug, or an Android bug.

App shortcuts still work okay on desktop and on older Android phones.