You set the preferred language for your Google Account, which is used across all of your Google services on the web, including the Google Admin console. To change the language in the Admin console, you need to update your preferred language for Google services. Not all content in the Admin console is automatically translated, including some log information in the security investigation tool, such as website name and application names.
Update your preferred language
To update your preferred language or add another language, follow the steps in Change your language on the web.