How do I overlay vector data over a 3D terrain basemap?

I would like to create a map that is similar to the one found here: https://www.reddit.com/r/MapPorn/comments/lpo557/geological_map_of_north_america/ .

I’m thinking that you could replicate this with a transparent terrain basemap and add the appropriate layers on top of this. However, I am also open to other suggestions if anyone has better ideas on repeating this style of map.

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Edit after everyone’s feedback: