It's important that you know how to use Figma and Webflow, so that you can play a bit with the components.
There are some builds with Adam on the Relume Youtube (on the livestream section) that really helped me understand better how to use it.
Also, have a look at Finsweet Client First Framework, which is used by Relume. For that, i'd recommend you watching some of the Finsweet videos with Joe Krug, he's great.
There are also great videos with Ran Segal on the Flux Academy channel.