Oldboy 2003

I have this doubt about about DV in Blu-ray vs Web-DL.
So my tcl tv supports dolby vision(both mp4 and mkv) and in web-dl it plays on DV by default but on the bluray it plays with HDR 10 by default and I don't even know if it can be changed to dolby vision. I am perfectly satisfied with the picture quality of HDR 10 as it is a 4k Blu-ray so the bitrates are nice but I wonder if DV plays better which it usually does according to the DV vs HDR comparsions on youtube saying it's like almost 10% better image on most cases. I asked gpt and it said it might be due to different profiles of DV. But I couldn't get more out of gpt other than that. So my question or even a suggestion is that can answer here on the FAQ page about what are these different profiles of dolby vision and why doesn't the profile that 4k blu ray uses play on my tcl tv, I found out that web-dl have profile 5 and 4k bluray has profile 7 as far as I know and even that has two types FEL and MEL. Anyway please tell me how I can play dv in my tcl tv

Brother, why there is no English audio for this movie

Thanks ^ - ^