What is the best way to send a 404 to the user if the url before the category is incorrect?

Question

PHP

Hello, I have the following route:

Route::get('/katalog/{alias}', 'Web\[email protected]')->where('alias','(.*)?');

And here is the method that fires for this route:

catalogItems method

public function catalogItems($alias)
{
        $arrayUrl = explode("/",$alias);
        $entity = Category::GetByAlias(Arr::last($arrayUrl))->first();
        return view("web.page.entity.entity",[
            "entity" => $entity,
            "children" => $entity->children()->Active()->get(),
            "products" => $entity->products()->Active()->with("images")->get(),
            "breadcrumbs" => Breadcrumbs::make($entity)
        ]);
}

It works well with url like this for example:
домен/katalog/catalog1/catalog1-1
But it works with url like this too:
домен/katalog/qweqweqweqweqweqwe/catalog1-1
Because I take the last alias from the url and search for the category by it.

I now think that I need to домен/katalog/qweqweqweqweqweqwe/catalog1-1return 404 to such a url, I think to do this by checking the current url with an array of ancestor aliases, this array returns the class Breadcrumbs::make($entity) and if there is a difference, then return 404. Please tell me if it is correct to do so? Maybe you can do it differently. Thank you in advance for your response.