I just try to switch from OH2.5.x to the 3.x, but I have some issues with habpanel.
I run Chrome in Kiosk mode (caching disabled), which so far always worked with habpanel. The UI on this platform is limited to a tochscreen. Now with OH3 I have problems selecting a saved panel during startup.
It it already possible in OH3 to configure a default panel ? It seems it’s not implemented yet.
Under Settings in HAPPanel (in my screen this is the little wheel next the the Date and Time) you will need to click on the litte star at the end of the name of you panel configration.
Clicking the star will make this configuration the default one and you will be able to see it on your other devices.