Steps to reproduce the issue

1. set a menu item that shows an article as the home menu item
   2, open https://<your-site>/?format=feed -- of course, this is not a useful feed link (I know that; thats the whole point.

2. see a response such as

<?xml version="1.0" encoding="UTF-8"?>
<error>
	<code>404</code>
	<message>View nicht gefunden [Name, Typ, Präfix]: article, feed, site</message>
</error>

4. open the browser DevTools to see the http status code reported from the server

(of course, any other non-existent or disabled feed link works too; this is a general problem)

Expected result

the HTTP response status (not the one listed as <code>404</code>) is actually 404

Actual result

the HTTP response status is 200

System information (as much as possible)

Joomla 5.3.0

Additional comments

• after #43692, disabling feed links leads to google still trying to index the old feed urls, complaining about soft-404 errors
• this is not just a problem with com_articles, but a general problem for the "core" document/renderer infrastructure of joomla