I just scrolled through half a dozen ATC tower tour videos on YouTube and didn't see any skewed displays, but it's possible that they 1) they tidied it up for the tour, or 2) they just didn't apply this approach in those particular sites.

I'm still very interested to see this novel application.

I've been in a few airport towers in Brazil, and never seen a diagonal screen.

It may be a regional thing, or a small clique. Or it may be best for some software that is long gone.

Really, I would be pretty interested to hear your story. I've been a lot to Brazil.

It's not that interesting, I used to work inspecting airport fire-fighters. That required talking to the people on the tower.

This was more than a decade ago, and they may have moved to a different approach since then. At the time of the tour I took, ultra-widescreen monitors didn't exist.

IIRC it was a large Wacom or similar display.

I think most replaced them with ultra wide screens