I agree that HDR has been mostly misused, but on the other hand the difference between the color space sRGB and the wider-gamut rendering enabled by the Rec. 2020 encoding of the movie is extremely obvious for me (sRGB has a very bad red primary color, which forces the desaturation of the colors in the yellow-orange-red-purple sector, where the human eye is most sensitive to hues and where there are many objects with saturated colors, e.g. flowers, fruits, clothes, whose colors are distorted by sRGB).
Because I want the Rec. 2020 and 10-bit color encoding, I must also choose HDR, as these features are usually only available together, even if I do not get any serious advantage from HDR and HDR-encoded movies can usually be viewed well only in a room with no light or with dim light, otherwise most of them are too dark.