Sara M. more coming from us on this soon - but look up the "figma to Webflow design system sync" - you should find a couple of videos on it that quickly run you through it.
My advice for Relume specifically is to only import the base/primitive variables - the custom variables - and then do a bit of manual linking to the semantic variables to match your design. Its not as easy as it could be and its for several reasons, much of which is outside our control.
