Renaming PHPSESSIONID cookie to add __Host- cookie prefix

[n2diving]

Would it be safe with Magento 2.4.3-p1 to rename the phpsessid cookie to be more secure by adding the __Host- cookie prefix now supported in all modern browsers?

Although configuring a cookie prefix is not supported natively in M2 (should it be?) it can be easily accomplished in the php.ini by reconfiguring session name value.

session.name = __SECURE-PHPSESSID

https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie

[LitCommerce Expert]

I'm not familiar with Cookie Prefixes but PHP should support it out of the box:

<?php

session_name('__Secure-PHPSESSID');
session_start();

http://php.net/manual/en/function.session-name.php