Optical-radio overlay of high redshift (z >  2) GRGs, where the optical images colour composite of three bands of PanSTARRS and radio is from the LoTSS DR-1 at two resolutions. The red square indicates the host of the three GRQs. The white and yellow colour contours represent LoTSS high (6″ × 6″) and low (20″ × 20″; red circles at bottom left) resolution maps, respectively, which have eight equally spaced relative contour levels starting from three times σ, where σ denotes the local rms noise.