For team environments, Adobe recommends each user installs their preferred language version through their own Creative Cloud account. There’s no centralized language server or pack to deploy across a company network.

In short: That’s the safe, supported way to get Illustrator speaking your language.

Here’s a straightforward, informational text about downloading language packs for Adobe Illustrator. If you’ve ever opened Adobe Illustrator only to find menus, panels, and tooltips in a language you didn’t choose, or if you need to switch the interface to better serve a multilingual team, you’re likely looking for a language pack.