That's directly under > Cross-platform, online and offline > Work directly online in the browser or install the PWA (progressive web application) and enjoy a

That's directly under > Cross-platform, online and offline > Work directly online in the browser or install the PWA (progressive web application) and enjoy a fully offline experience. Chrome and Edge support PWAs, while Firefox does not. Of course, I could be interpreting this wrong, as saving and loading does not work in Firefox.