Safari 26 on iPhone and iPad helps many websites feel more like apps by...

https://penelopessmartdigests.talesignal.com/posts/does-a-web-app-get-deep-ios-integration-like-share-sheet-and-widgets

Safari 26 on iPhone and iPad helps many websites feel more like apps by improving the Home Screen experience. When you add a site to your Home Screen, you can choose 'Open as Web App' so it launches without the usual browser bars and menus