This site was written in English as it’s probably the most common one out there for users to understand.. which I am fluent in! Plus the tech world is in English so it is the most logical path. My first language is actually French.
Should you need to consult in other languages, the top right part of the site’s header has a “pull down” to select the language you prefer, and Google Translate handles the rest. Should you not like some translations done automatically, you can always copy and paste into another tool named DeepL for an alternative translation. ‘hope this helps!