Overview of the relevant radio continuum polarimetry parameters of ORC J0356–4216. Panel a: Total intensity emission of MeerKAT data at central frequency of 1.28 GHz and bandwidth of 0.758 GHz with overlaid contours starting at 3σ and increasing by factor of two (σ = 3 μJy/beam). The beam of 8.57″ × 7.65″ appears in the lower left corner. Panel b: Total intensity emission of EMU data at central frequency of 943 MHz and bandwidth of 0.288 MHz with overlaid contours starting at 3σ and increasing by a factor of two (σ = 20 μJy/beam). A circular beam of 15″ appears in the lower left corner. Panel c: Two-point total spectral index map between the EMU data of 943 MHz and MeerKAT data of 1280 MHz with overlaid contours starting at 3σ and increasing by a factor of two (σ = 5.5 μJy/beam). The circular beam of 15″ appears in the lower left corner. Panel d: WISE 3.4 μm map with overlaid contours of the MeerKAT 1.28 GHz emission, starting at 3σ and increasing by factor of two (σ = 3 μJy/beam). The beam of 8.57″ × 7.65″ appears in the lower left corner. Panel e: Polarised intensity emission of MeerKAT data at central frequency of 1.28 GHz. The contours drawn make use of the signal-to-noise map, starting then at a factor 7 and increase by $\sqrt{2}$. The circular beam of 22″ appears in the lower left corner. Panel f: Fractional polarisation of MeerKAT data at central frequency of 1.28 GHz with the same overlaid contours from the polarised intensity map. The contours drawn make use of the S/N map, starting at a factor of 7 and increasing by $\sqrt{2}$. The circular beam of 22″ appears in the lower left corner. Panel g: Polarised intensity emission of MeerKAT data at central frequency of 1.28 GHz with overlaid total intensity emission at 1.28 GHz contours starting at 3σ and increasing by a factor of two (σ = 30 μJy/beam). The magnetic field orientations are shown in black and scale with the polarised intensity. The circular beam of 22″ appears in the lower left corner. Panel h: Distribution of foreground-corrected RM of MeerKAT data at central frequency of 1.28 GHz with overlaid total intensity emission at 1.28 GHz contours starting at 3σ and increasing by a factor of two (σ = 30 μJy/beam). The circular beam of 22″ appears in the lower left corner.