I have mentioned it a comment already, but for better visibility now also in a topic.
Not all widgets are needed all the time. For example I don’t care about my camera when I’m at home, about my lights during the middle of the day, my office devices on a weekend or my AC in December.
It would be great to have the ability to at least have basic control over the conditions under which certain widgets are displayed. Of course in edit mode they should all show up (maybe with some icon to indicate that they are conditional).
At the very least current time of day, day of the week, and month as well as the presence of users.
Of course more advanced conditions depending on the current value of device capabilities, etc. would also be appreciated.
EDIT: Also see conditional cards which Home Assistant dashboards support Conditional card - Home Assistant