Tecadmin published a tutorial about setting up Apache with PHP-FPM on Ubuntu 20.04 LTS.
How to Setup Apache with PHP-FPM on Ubuntu 20.04
PHP FPM (FastCGI Process Manager) is an alternative implementation of PHP FastCGI. It provides some additional features like Adaptive process spawning which is useful for sites. This tutorial will help you to install Apache with PHP-FPM/FastCGI on Ubuntu 20.04 system. In this tutorial, we are using PHP 7.4 and configure with Apache using PHP-FPM and FastCGI.
How to Setup Apache with PHP-FPM on Ubuntu 20.04