Hello,

From FluentUI design webpage it seems that the link to "Figma plug-in" is broken, see "Download Figma plug-in":
https://www.microsoft.com/design/fluent/#/web

I believe this can be categorised as documentation issue.

this seems to be the md file related
https://github.com/microsoft/fluentui/blob/7a613256ef792c037702a47fa07713cecacbc755/apps/fabric-website/src/pages/Overviews/ResourcesPage/docs/default/ResourcesDesignResources.md

Cheers