Misalignment of popover menu items
Screenshot of a GTK4 menu:
The most obvious alignment issues are around the section headings, which don't have enough space above them, and are too close to the edge of the popover.
To my eyes there's not enough space above and below each section, too.
This might be an opportunity to review the styling and spacing of GTK4 menus more generally. One particular issue, I think, is the colour of the hover background, which seems too heavy.