Difference unchecked and action entries in a popover
In Gtk3, toggleable entries in a popover have a checkbox at the right, so you know when that’s unchecked, and you easily differentiate them from “direct action” entries.
In current Gtk4, there’s a “ckecked” sign at the left when the entry is toggled, but there’s nothing displayed when the entry is unchecked. That could make things unclear, like a “Sound” entry in a popover that is hard to understand if you don’t read it “sound is currently disabled.”