The types of flares produced on DSLRs and larger mirrorless cameras are very different, and are caused by light from outside the frame, bouncing off the side of the lens and onto the sensor. That’s why they can generally be eliminated with use of a lens hood. I can say with certainty that my Panasonic GH5 does not produce these types of aberrations in this scenario, or any other.
These reflections are different — I suspect they’re caused by having the lens cover so close to the sensor. The light is bouncing off the optics, onto the cover, and then back into the camera. That’s why there’s a mirrored effect.
Obviously, smart phones need to have small cameras, and that’s why every one I tested suffers from this issue to some degree. The question is, why are some substantially worse than others?