When "Show header" is unchecked, the widget header still appears on mouseover in both view and edit modes (documented behavior).

On densely packed dashboards (e.g. digital signage/NOC walls), the hovered header overlaps neighboring widgets and looks poor.

Request: keep hidden headers fully hidden in view mode (and kiosk mode); show them on hover only in edit mode.

Current docs:
https://www.zabbix.com/documentation/current/en/manual/web_interface/frontend_sections/dashboards/widgets

Related: ZBXNEXT-5281, ZBXNEXT-5407, ZBX-16701

Proposal :

• Add an option (widget- or dashboard-level) to disable "show hidden header on hover" in view mode; or
• Change view-mode behavior so hidden headers appear on hover only in edit mode.