You open the app in the browser, on Windows, Mac, iPhone, or Android. You can also keep it on the home screen or in the Dock, so it opens directly.
Open it in Edge or Chrome. From the address bar you can keep it on the desktop.
In Safari: File → Add to Dock. In Chrome or Edge, from the address bar.
Open it in Safari. Share → Add to Home Screen.
Open it in Chrome. Menu → Install app.
Open the app, upload a document, see what comes back.
