[jaoane]

The last two images you linked to are fake, and clearly designed by someone who doesn’t know Spanish and has never been to either Chile or Spain. No signs look like that in either country.

Nobody would dare capitalise “de” in Santiago de Chile for instance.

[thih9]

Confirming, the image linked by grandparent is tagged as 3d illustration on shutterstock[1]. A similar illustration with lowercase “de” spelling exists too[2]. Actual road signs in Chile have lowercase “de”[3].

[1]: https://www.shutterstock.com/image-illustration/santiago-chi...

[2]: https://www.shutterstock.com/image-illustration/santiago-de-...

[3]: https://commons.m.wikimedia.org/wiki/File:CARRETERA_COSTERA_...