According to earthobservatory.nasa.gov, geo,libretext.org, and ugc.berkeley.edu, the regions that receive the least net radiation are the poles. Net radiation is minimal over the poles because sunlight is reflected from the ice-covered surface at a low angle. Combined with the long polar night, very little net radiation is found at these latitudes.

As for your second question, it’s a common misconception that every location on Earth receives the same amount of sunlight. In reality, because Earth is a sphere, not all parts of the Earth receive the same amount of solar radiation. More solar radiation is received and absorbed near the equator than at the poles. The amount of sun a region receives depends on the tilt of Earth’s axis and not its distance from the sun. This is why we have seasons and why they are different in different parts of the world. For example, when it’s summer in the Northern Hemisphere, it’s winter in the Southern Hemisphere, and vice versa. This is due to the tilt of the Earth’s axis, causing each hemisphere to receive different amounts of sunlight at different times of the year.

Dr Jorge Morales Pedraza thank you for your contribution to the discussion

Earth's axis always points in the same direction. Because of this, the part of Earth that receives the most direct rays from the Sun changes as the Earth travels around the Sun. At the equinox, the Sun's rays shine most directly on the equator, and the Northern and Southern Hemispheres get the same amount of Sunlight. Every location on Earth experiences an average of 12 hours of light per day but the actual number of hours of daylight on any particular day of the year varies from place to place. Locations around Earth's equator only receive about 12 hours of light each day. Because Earth is a sphere, not all part of the Earth receives the same amount of solar radiation. More solar radiation is received and absorbed near the equator than at the poles. Near the equator, the Sun's rays strike the Earth most directly, while at the poles the rays strike at a steep angle.Net radiation is at a minimum over the poles as the sunlight that comes in at a low angle is reflected from the ice-covered surface. Combined with the long polar night, very little net radiation is found at these latitudes. From the Stefan-Boltzmann equation, we can also say that the radiating regions colored red and purple are warmer than those colored green and blue. As expected, the tropical and subtropical regions have the highest outgoing radiation (and temperature) and Polar Regions have lowest values. But on an average, poles are the ones that get the least amount of solar radiation. The sun is closest to the earth in January (winter in the northern hemisphere), so that the maximum solar insolation received in the southern hemisphere is greater than that received in the northern hemisphere. At the equinoxes, solar insolation is at a maximum at the equator and is zero at the poles. The Equator receives less insolation than the tropics because of the presence of clouds. At the same latitudes the insolation is more over the continent than oceans because clouds over the ocean reflect back the sunlight. As a consequence, the maximum outgoing long wave radiation is found above warm dry areas such as the subtropical deserts. More generally, wet equatorial areas generally emit less radiation than dry tropical areas. As a consequence, the maximum outgoing long wave radiation is found above warm dry areas such as the subtropical deserts. More generally, wet equatorial areas generally emit less radiation than dry tropical areas