Steps to reproduce the issue

On a clean install of Joomla set up the following:

An article - eg with title "one"

A menuitem with title "blog", Menu Item Type set to Articles / Category Blog,
Choose a Category set to Uncategorised

A menuitem with title "list", Menu Item Type set to Articles / Category List,
Choose a Category set to Uncategorised

(The order that these menuitems are configured is important).

Go to the front-end. On the site this should then display the 3 menuitems.

When you click on "blog" menuitem it shows article "one" with a link /blog/one

When you click on "list" menuitem it shows article "one" with a link /blog/one

Now use a template override to change the "list" display to try and get it to show article "one" with a link of /list/one instead.

(Or rather than using a template override just edit the file instead).

The key file is: com_content/tmpl/category/default_articles.php.

Around line 176 it has:

<a href="<?php echo Route::_(RouteHelper::getArticleRoute($article->slug, $article->catid, $article->language)); ?>">
    <?php echo $this->escape($article->title); ?>

Change this to include the Itemid of the "list" menuitem (which is 103 on my instance):

<a href="<?php echo Route::_(RouteHelper::getArticleRoute($article->slug, $article->catid, $article->language) . "&Itemid=103"); ?>">
    <?php echo $this->escape($article->title) . " ok"; ?>

(Adding the "ok" to the article title just confirms you're editing the right file).

Redisplay the menuitem "list" on the site.

Expected result

You would expect that specifying the Itemid would force the URL to be /list/one

Actual result

The URL continues to be /blog/one

(You can also change the code to have "&Itemid=101" - the home page - to demonstrate that it uses the entered Itemid for other values).

System information (as much as possible)

Joomla 4.3.4 on Windows 10

Additional comments

Going through with a debugger, I reckon that the Itemid was refused in libraries/src/Component/Router/Rules/MenuRules.php, in the code following line 90

// Check if the active menu item matches the requested query

Obviously the case appears a bit contrived, but I've just made it up to be the easiest way to demonstrate a genuine problem.