The accessible menu test is incorrect
The menu check is incorrect; opening a sub menu on hover must not be required. Hovering is the least accessible way. It should not even be mentioned as recommended.
I took that from the theme review documentation here:
https://make.wordpress.org/themes/handbook/review/accessibility/required/#keyboard-navigation
Fails: Dropdown navigation menus are hidden using display:none; and brought into view on :hover Passes: Dropdown navigation menus are hidden using position: absolute; and brought into view on :hover and :focus, and are navigable using the tab key Better: Dropdown navigation menus are hidden using position: absolute; and brought into view on :hover, :focus, and are navigable using either the tab key or by using the keyboard arrow keys
This is why I tried to express that checking the menu is not that simple. That opening sub menus on hover is allowed -as long as the keyboard navigation also works -is not the same as hover being required.
If opening sub menus on hover was required, then that would exclude any theme where you open submenus by clicking a button.
I want to check the tests thoroughly and with help from the accessibility team, but I will not be able to do that until after the 5.8 FSE MVP dates.
We can cycle back on these tests seeing that they are considered warnings. I'll create a warning document to make the distinction and lessen their importance... same for the a11y tests.
We can focus on the error cases first which are definitely more straightforward.