The orthogonal function of the top view can quickly help us to adjust a satisfactory top view angle and effectively avoid the problem of the tilt of the top view.
(The difference between the perspective and the orthogonal view is: in the perspective view (the default), objects which are far away are smaller than those nearby. In the orthographic view, all objects appear at the same scale.)
Instruction:
Enter "Render" and switch to Top view, turn on "Ortho Projection" on the right, and enter the angle in "Camera Angle" below.
