Up until the latest firmware upgrade, the shelly wall display XL, had the option to configure the URL of your home assistant dashboard, and it would load it on the screen. In home assistant's configuration.yml you could add this entry, to make it not require a login, since the display and HA are on the same network
It looks like there have been customer complaints about this, because in the current beta firmware 2.7.0 the deprecation for the Home Assistant page is removed again. See: CHANGELOG 2.7.0
New features
Un-deprecated the HomeAssistant page. We understand that for some of you this feature is more useful than a separate app.
Added the option to clear the WebView cache in Settings -> Home Assistant.
NOTE: This will clear all the WebView data and you may need to log in again to all configured Home Assistant instances.
If there was a way to hide the toolbar and the sidebar on the app, it would be ideal. There should also be a way to automatically open the app on boot.
Scrolling in the app is a lot smoother compared to the web view. Interacting with sliders (e.g. to control brightness of lights) is also smoother in the app.