Sorry -- I don't think I was clear.
If it works fine on your Shield, it will work fine on the Vero 4K. I was simply mentioning the limitations of HDMI 2.0a, both of which apply to Vero 4K and the NVIDIA Shield. I think the lines of this post have become a bit crossed. Can you play 24Hz 4K HDR on your Shield at the correct Refresh Rate?
There is indeed an occasional flicker when playing HDR content for some users, but it seems that this is not unique to LG OLED TVs or a limitation of them. I think I know what the problem is and will start a new post with a range of video playback improvements that I want to get in to the next update shortly.
There is now support for 12-bit output as well.
Hope this helps