I've featured over the last six months and that's now a cracking solution for massaging HTML5 web sites and PWA into Start screen-launchable and full-screen form. 'edgeTile' UWP takes a more hands-off approach, concentrating on putting shortcuts on your Start screen in a more customisable fashion but stopping short at packaging sites themselves. Hence you still end up, for web content, with URL bars on-screen, taking up room. The upside is that edgeTile is more flexible, allowing the launching of other resources, plus you can 'save' your creations, as needed.