It depends on screen size and how close you sit as to whether you can tell the difference, (Using a projector the difference between HD & UHD sticks out like a sore thumb) the main difference though on a smaller TV is HDR (If done properly) as this makes a big difference to the picture.
Dolby Vision is a tight knit standard so should be more consistent, whereas HDR10 is looser so manufactures can do their own thing, which might not be totally compatible with other manufactures products. (For example Samsung use HDR10+ on some of their sets which doesn’t match up with anybody else)
I wouldn’t worry too much about it though, as you would probably need to view DV & HDR10 side by side to really notice any difference. (Not forgetting how well the disc has been mastered which would probably make a bigger difference anyway)
It’s best to just sit back and enjoy the film, and forget about the technology behind it.