I am running Centos 7 with Nginx / php-fpm / PHP 7.4 / PHP 7.2 on the server , yesterday i tried to increase the limit for Roundcube so i changed both upload max size and post max size
/usr/local/php74/lib/php.ini:846:upload_max_filesize = 1G
/usr/local/php72/lib/php.ini:822:upload_max_filesize...