Prevent saved home screen icons opening a browser without address bar?
The idea of "Add to Home screen" is to create an app-like experience for web apps, so this will not give a full browswer.

But there is an alternative: Use the Shortcuts app with an "Open URL" action and add the shortcut to your home screen.


Launch the Shortcuts app
Select "Create Shortcut"
Select "Add Action"
Select "Web", scroll down to the Safari section and select "Open URLs"
Tap on the "URL" placeholder and write your URL instead


Tap on the three dots on top right, assign a name and select "Add to Home Screen"