Thanks for your help @robinyo,
I tried your code, and saw in the dev tools that the lib was indeed imported. But I still did not have access to the
So I tried again multiple import variants, and finally, found this one to work :
import * as QRScanner from 'cordova-plugin-qrscanner/dist/cordova-plugin-qrscanner-lib.min';
QRScanner is then a global object instance.
At least, it works in my app as it used to work when I used it as a Cordova Plugin on an ios/browser platform…
I will try to push a sample app on GitHub as proof