In every app I know of that uses Kirigami.ActionToolbar (including System Monitor, Discover, Elisa, and Kirigami Gallery), the component frequently spams the log with warning about a binding loop:
file:///home/nate/kde/usr/lib64/qml/org/kde/kirigami.2/ActionToolBar.qml:109:18: QML ToolBarLayout: Binding loop detected for property "actions"
Git commit 73446bdd3c64c4fe845274ecfe4a627054f04f89 by Arjen Hiemstra.
Committed on 12/05/2021 at 09:47.
Pushed by ahiemstra into branch 'master'.
Fix binding loop for property "actions" in ToolBarPageHeader
Changing properties on the actions while we're evaluating a different
property will cause that property to be reevaluated which triggeres a
binding loop warning.
M +31 -16 src/controls/private/globaltoolbar/ToolBarPageHeader.qml