Yes - BT.2020 doesn’t mean HDR. It specs colour primaries and the RGB->YCbCr matrix. The EOTF needs to specified separately for HDR. (The EOTF is the Electro Optical Transfer Function and specifies how the video signal should be output in light level terms)
However the Transfer Characteristic of PQ (Perceptive Quantisation) in the Media Info suggests a PQ EOTF should be used - which is an HDR EOTF. ST.2084 is a PQ EOTF for instance.
(HLG HDR is not PQ-based and uses a different EOTF - not all HDR is PQ.)