How to change the view projection to be the same as leaflet?

I want to change the projection to have a real plan view. In cesium the corners are not at 90 degrees.

Captura de pantalla 2021-05-06 174028

Is the camera’s view direction perpendicular to the map?

For instance, when you zoom out all the way, which of the following maps does it look like:

looks like the second map.

Can you share the coordinates of the location you are looking at in the first post?

the coordinates are “Cesium.Cartesian3.fromDegrees(-3.835455,40.405785, 1900)”

I think what you are looking for is WebMercatorProjection. Here is an example: Sandcastle link.

it was that, thank you.