OpenLiteSpeed vs SlickStack Nginx

I saw some chat about Litespeed using CentOS for Wordpress and also Centminmod is using CentOS. But now, CentOS has been cancelled by Red Hat and a lot of discussions on Stackexchange is about Ubuntu/Debian is using less RAM memory than CentOs too.

I'm guessing it will take a while before these scripts can move to the new OS and I don't want to get stuck on CentOS unsupported.

So browsing Linode, DO, & Reddit it seems Ubuntu with Nginx and PHP-FPM is the most popular still.

  1. For WordPress high traffic, which OS is the best?
  2. Do you prefer Litespeed, CMM, or Nginx, SlickStack? or..
  3. And the most portable option and why?

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