The industry has really fucked up the terminology for high-dynamic-range images and videos. So you have "HDR where a picture is taken at a high dynamic range and then squeezed into the standard one with local tone mapping", which Google calls "HDR+" and Apple calls just "HDR", and then you have "HDR where a screen can go brighter than the brightest UI white", which Google calls "Ultra HDR" for sill pictures and "HDR10" for videos, and Apple calls "XDR" if I'm not mistaken. Not confusing at all.