Not really a “standard” 20.04. It is a release upgrade from 18.04, as you can see:
ii libapache2-mod-php 2:7.4+75 all server-side, HTML-embedded scripting language (Apache 2 module) (default)
rc libapache2-mod-php7.2 7.2.24-0ubuntu0.18.04.7 amd64 server-side, HTML-embedded scripting language (Apache 2 module)
ii libapache2-mod-php7.4 7.4.3-4ubuntu2.4 amd64 server-side, HTML-embedded scripting language (Apache 2 module)
ii php-common 2:75 all Common files for PHP packages
ii php-db 1.9.3-1build1 all Database Abstraction Layer
ii php-gd 2:7.4+75 all GD module for PHP [default]
ii php-json 2:7.4+75 all JSON module for PHP [default]
ii php-ldap 2:7.4+75 all LDAP module for PHP [default]
ii php-pear 1:1.10.9+submodules+notgz-1ubuntu0.20.04.2 all PEAR Base System
ii php-soap 2:7.4+75 all SOAP module for PHP [default]
ii php-sqlite3 2:7.4+75 all SQLite3 module for PHP [default]
ii php-xml 2:7.4+75 all DOM, SimpleXML, WDDX, XML, and XSL module for PHP [default]
ii php-xmlrpc 2:7.4+75 all XMLRPC-EPI module for PHP [default]
rc php7.2-bz2 7.2.24-0ubuntu0.18.04.7 amd64 bzip2 module for PHP
rc php7.2-cgi 7.2.24-0ubuntu0.18.04.7 amd64 server-side, HTML-embedded scripting language (CGI binary)
rc php7.2-cli 7.2.24-0ubuntu0.18.04.7 amd64 command-line interpreter for the PHP scripting language
rc php7.2-common 7.2.24-0ubuntu0.18.04.7 amd64 documentation, examples and common module for PHP
rc php7.2-curl 7.2.24-0ubuntu0.18.04.7 amd64 CURL module for PHP
rc php7.2-gd 7.2.24-0ubuntu0.18.04.7 amd64 GD module for PHP
rc php7.2-json 7.2.24-0ubuntu0.18.04.7 amd64 JSON module for PHP
rc php7.2-ldap 7.2.24-0ubuntu0.18.04.7 amd64 LDAP module for PHP
rc php7.2-mbstring 7.2.24-0ubuntu0.18.04.7 amd64 MBSTRING module for PHP
rc php7.2-mysql 7.2.24-0ubuntu0.18.04.7 amd64 MySQL module for PHP
rc php7.2-opcache 7.2.24-0ubuntu0.18.04.7 amd64 Zend OpCache module for PHP
rc php7.2-readline 7.2.24-0ubuntu0.18.04.7 amd64 readline module for PHP
rc php7.2-soap 7.2.24-0ubuntu0.18.04.7 amd64 SOAP module for PHP
rc php7.2-sqlite3 7.2.24-0ubuntu0.18.04.7 amd64 SQLite3 module for PHP
rc php7.2-xml 7.2.24-0ubuntu0.18.04.7 amd64 DOM, SimpleXML, WDDX, XML, and XSL module for PHP
rc php7.2-xmlrpc 7.2.24-0ubuntu0.18.04.7 amd64 XMLRPC-EPI module for PHP
rc php7.2-zip 7.2.24-0ubuntu0.18.04.7 amd64 Zip module for PHP
rc php7.4-bz2 7.4.3-4ubuntu2.4 amd64 bzip2 module for PHP
ii php7.4-cgi 7.4.3-4ubuntu2.4 amd64 server-side, HTML-embedded scripting language (CGI binary)
ii php7.4-cli 7.4.3-4ubuntu2.4 amd64 command-line interpreter for the PHP scripting language
ii php7.4-common 7.4.3-4ubuntu2.4 amd64 documentation, examples and common module for PHP
rc php7.4-curl 7.4.3-4ubuntu2.4 amd64 CURL module for PHP
ii php7.4-dev 7.4.3-4ubuntu2.4 amd64 Files for PHP7.4 module development
ii php7.4-gd 7.4.3-4ubuntu2.4 amd64 GD module for PHP
ii php7.4-json 7.4.3-4ubuntu2.4 amd64 JSON module for PHP
ii php7.4-ldap 7.4.3-4ubuntu2.4 amd64 LDAP module for PHP
rc php7.4-mbstring 7.4.3-4ubuntu2.4 amd64 MBSTRING module for PHP
rc php7.4-mysql 7.4.3-4ubuntu2.4 amd64 MySQL module for PHP
ii php7.4-opcache 7.4.3-4ubuntu2.4 amd64 Zend OpCache module for PHP
ii php7.4-readline 7.4.3-4ubuntu2.4 amd64 readline module for PHP
ii php7.4-soap 7.4.3-4ubuntu2.4 amd64 SOAP module for PHP
ii php7.4-sqlite3 7.4.3-4ubuntu2.4 amd64 SQLite3 module for PHP
ii php7.4-xml 7.4.3-4ubuntu2.4 amd64 DOM, SimpleXML, XML, and XSL module for PHP
ii php7.4-xmlrpc 7.4.3-4ubuntu2.4 amd64 XMLRPC-EPI module for PHP
rc php7.4-zip 7.4.3-4ubuntu2.4 amd64 Zip module for PHP
rc phpmyadmin 4:4.9.5+dfsg1-2 all MySQL web administration tool
ii pkg-php-tools 1.38 all various packaging tools and scripts for PHP packages