Some actions deserve a button
Turning on a hallway light should not require waking a display, finding a room and choosing a tile. A tactile control offers a direct action without asking for much attention.
That matters when hands are full, when someone is unfamiliar with the house or when the task happens in the dark.
Give the screen the right work
A panel can be excellent for an overview, detailed settings or energy information. Those tasks benefit from context and space. Basic actions often benefit from the opposite.
I decide which functions belong on the wall controls before designing the dashboard. A polished interface should not conceal a missing everyday control.
Make it legible and maintainable
If a screen belongs in the space, consider its height, brightness, reading distance and the number of steps to common tasks. Test it with the people who will use it.
Also plan for replacement and loss of connection. The house should not become unusable because a display has reached the end of its life.