Linux Babe published a guide about installing phpMyAdmin with Apache (LAMP) on Ubuntu 20.04 LTS.
How to Install phpMyAdmin with Apache (LAMP) on Ubuntu 20.04
This tutorial will be showing you how to install phpMyAdmin with Apache, MariaDB, PHP7.4 (LAMP stack) on Ubuntu 20.04 LTS. phpMyAdmin is a free and open-source web-based database management tool
How to Install phpMyAdmin with Apache (LAMP) on Ubuntu 20.04