Left column: Gaia EDR3 colour-magnitude diagrams showing the 3 213 406 initial candidate objects (grey dots) with the Gaia EDR3 CMD hot subluminous star region selection criteria (magenta line - top and middle rows) and the strict hot subluminous star-selection criterion (blue line - bottom row) (see Table 1). Right column: sky distribution of the parallax selection candidate objects. Top row: parallax Selection 1 objects (blue circles). Middle row: parallax Selection 2 objects (red squares). Bottom row: parallax Selection 3 objects (green triangles).