I have a hestia install using nginx+apache. On wordpress websites with high traffic, the google analytics data is getting skewed. Essentially, same domain on my hestia server reports a user drop of about 40% in analytics, shift the domain as it is to a simple LAMP server and the user count jumps as soon as the ip is pointed. I have tried different approaches to see what might be causing this but have not reached any conclusive answer.
On the domains i have tried using the analytics script directly in the header, tried calling analytics through google tag manager, in both the cases the issue persists. Zip and migrate the same site to LAMP and the user count starts increasing. There is no down time of the hestia instance as it is a rather large install with too little usage. I have also tried clearing, disabling and removing cache plugins from these wp installs but the behaviour is same.
Hestia version : v1.9.4
php: 8.3
Debian 12
Ram: 12gb
Processor: 6
Please advise if anyone has faced a similar issue.