Motion blur also has to be enabled

Yes Ive done that :)

concrescence Yes, but our eyes don't focus the same way a camera focuses. Our eyes uses muscles and changes the aperture of the pupil (I think) compared to a lens setup where the lens moves back and forth from another lens to get DoF and change focus.

Is depth of field on in render settings?

[Q] Is the focus distance the problem?

blades to 3 or 5

Enabled in render tab?

[Q} Is the focus distance the problem?

1.0 / 1.8 / 2.8

😆