Cybertruck looks that way because of compromises. They didn't think the shape would sell, they thought stainless steel would sell. The shape is a function of how hard it is to shape stainless steel. Likewise gluing panels on is required because stainless steel can't be welded. Because they refused to compromise on stainless steel they were forced to compromise elsewhere.

Stainless steel can be welded... just not easily and cheaply.