For what its worth my development server (CentOS Stream 9) installed PHP8 modules are:
Code
root@home:~# yum list installed |grep php83
php83-php-bcmath.x86_64                          8.3.11-1.el9.remi                  @remi-safe        
php83-php-cli.x86_64                             8.3.11-1.el9.remi                  @remi-safe        
php83-php-common.x86_64                          8.3.11-1.el9.remi                  @remi-safe        
php83-php-devel.x86_64                           8.3.11-1.el9.remi                  @remi-safe        
php83-php-fpm.x86_64                             8.3.11-1.el9.remi                  @remi-safe        
php83-php-gd.x86_64                              8.3.11-1.el9.remi                  @remi-safe        
php83-php-mbstring.x86_64                        8.3.11-1.el9.remi                  @remi-safe        
php83-php-mysqlnd.x86_64                         8.3.11-1.el9.remi                  @remi-safe        
php83-php-opcache.x86_64                         8.3.11-1.el9.remi                  @remi-safe        
php83-php-pdo.x86_64                             8.3.11-1.el9.remi                  @remi-safe        
php83-php-pear.noarch                            1:1.10.15-3.el9.remi               @remi-safe        
php83-php-pecl-igbinary.x86_64                   3.2.16-1.el9.remi                  @remi-safe        
php83-php-pecl-memcache.x86_64                   8.2-3.el9.remi                     @remi-safe        
php83-php-pecl-msgpack.x86_64                    2.2.0-2.el9.remi                   @remi-safe        
php83-php-pecl-redis6.x86_64                     6.0.2-1.el9.remi                   @remi-safe        
php83-php-pecl-zip.x86_64                        1.22.3-1.el9.remi                  @remi-safe        
php83-php-process.x86_64                         8.3.11-1.el9.remi                  @remi-safe        
php83-php-xml.x86_64                             8.3.11-1.el9.remi                  @remi-safe        
php83-runtime.x86_64                             8.3-1.el9.remi                     @remi-safe

GD being installed by
Code
php83-php-gd.x86_64                              8.3.11-1.el9.remi                  @remi-safe

A missing GD install could cause problems with other scripts, but if you have Imagemagick binaries available they produce a clearer image than what GD would.

Note that generally each PHP version available will have its own config, so I have different php.ini files under an /etc/php7.4, /etc/php8.2, /etc/php8.3 folders which all contain different settings.

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