WordPress is a global, international software, with support for a multitude of languages and with infinite combinations. Approximately half of the installations are in a language that is not the default (English) and this leads us to think about localisms, transliteration, encoding conversions, calendar operations, collation … in short, everything you have with the different languages and formats that are around the planet. And this is what the PHP Intl extension provides.
So it would help if Custombuild would support the easy installation of this module.
More explanation can be found on make.wordpress.org/hosting/2021/05/20/why-hosters-should-install-the-php-intl-extension/