Meta tag substitution with buffered Bitrix content myth or reality?

Question

1C-Bitrix

The page has buffered content enabled.
When the page is loaded, the some.php file is connected in which the component and the whole kitchen are called.
If you use something like this on some event:
$APPLICATION->SetPageProperty("title", "some one else");
then it doesn't work because the properties of the page are overridden by the properties from the some.php file.
I found the only way out of the situation, at the OnEndBufferContent event (where all the page content falls into the $content variable) to replace a piece of content like this:
$content = preg_replace('/]+)>.*?<\/title>/m', ' some one else', $content);
But I don’t really like this method, maybe someone knows some way to solve it using standard Bitrix tools?
Maybe there is a way to set buffered content page properties?
The option to file everything down somewhere in the resalt modifier or not to offer in the template, many different components are connected and so on.

Answer 1

And if in the OnEpilog event put down? It is called at the end of the visual part, by that time the class should have already been worked out.
In init.php the following code:

\Bitrix\Main\EventManager::getInstance()->addEventHandler('main','OnEpilog','OnEpilogMeta'); 
function OnEpilog(){
    $APPLICATION->SetPageProperty("title", "some one else");
}