Trusted Proxies (Symfony requirement)?

While looking around for any specific settings for running SuiteCRM v8.x behind a Apache2 reverse proxy it seems that since SuiteCRM v8 uses Symfony, which requires trusted proxies to be explicitly defined which need to be set in:

config/Services/TrustedProxies.php

which should look something like this:

<?php
return [
    'proxies' => ['127.0.0.1', '::1'], // Add your reverse proxy IP here
    'headers' => \Symfony\Component\HttpFoundation\Request::HEADER_X_FORWARDED_ALL,
];

But, with the current SuiteCRM v8.x I’ve noticed that both installation instructions and various other documentation doesn’t match path to various directories and not sure whether this above is still needed. While I’m already running behind reversed proxy and the system works I’ve noticed that certain function in Studio doesn’t work, such as adding newly defined field attributes to the existing Account layout (forum thread here).