No, I did not. I read it recently when searching for turbulence, not even searching for the Cybertruck. I’ll try and find the article again. The article you posted doesn’t say anything though and refers to a Reddit post that isn’t even linked, that I could find.

I appreciate that. I don't think looking at the truck is sufficient to conclude that it is an inefficient airflow design. Especially because many parts of the design appear to be there to improve airflow compared to a normal truck – like the tonneau cover. Also, all of Tesla's other cars have quite good coefficients of drag.

Disagree with the GP as much as you want. Don't say it like that, at least not here.

Trump did an interview recently where he openly admitted that the airodynamics of the Cybertruck was not very good, even if it's better than most trucks. (Trucks are generally not designed with aerodynamics as the highest priority.)

My understanding is that the design is a mix of aesthetics and to keep production costs down.