You are using the wrong branch
I used this one. Is it the right one? HDR worked on Gemini Lake and (reportedly) on Tiger Lake. Didn't work on Athlon 200GE.
Also, the AMD drivers (IMO) are some of the best.
Ok, but I can make a list of weird issues that are exclusive to AMD and not present on Intel.
Like this issue for example which I reported to AMD almost a year ago and it is still not fixed.
Do you expect that the audio passthrough issues on Intel (e.g. NUC11PAHi)
The audio passthrough issue has been reported to Intel driver people but no one's in a hurry to fix it.
May I ask you which machine you own yourself or plan to purchase?
I own an Asrock J4105B-ITX (Gemini Lake) board. I plan to upgrade it at some point to a Tiger Lake based mini-ITX board (most likely Celeron 6305 or Pentium Gold 7505) when they are available.
My biggest concerns are does it do 10bit 4k HDR properly?
Current work-in-progress HDR code from lrusak's git repo (which I use for my LE builds) does not work on AMD. No idea when or if it will ever work.
But the biggest concern should be AMD's linux GPU driver quality, which is kinda crap. I encountered some nasty issues when testing LE on Athlon 200GE APU with Vega graphics.
The audio passthrough issues on Intel are nothing compared to general crappiness of AMD drivers.
Is there any plans for the Crazycat's driver with LibreELEC 10 ? Or TBS drivers ?
DVB Addons Update by CvH · Pull Request #5165 · LibreELEC/LibreELEC.tv · GitHub
I also posted a kernel patch for TBS 5520SE here.
No dolby vision support in Linux.
Is there a way to get it running on the Minix u9-h?
No.
It says RC1
It was compiled from yesterday's git master and is only a couple of minor commits behind.
Would apreciate a build to test.
That's what I uploaded yesterday.
Just to clarify and remove confusion is this specifically for the Intel Iris X Graphics or will it also work for the Intel UHD Graphics in the i3 model.
All NUC11s use Tiger Lake-U SoC with the same GPU. The only difference is the number of enabled EUs (48 on i3, 80 on i5 and 96 on i7).
So yeah, it will work.
should it also work on nuc 11 Pro?
Buy it and tell us 
I don't see why it wouldn't work.
Confirmed HDR is working!
That's great news!
But keep in mind that HDR code is early and has some bugs.
For example, HDR mode sometimes does not switch off when you switch from HDR to SDR video.
Another bug I noticed - if you switch the TV off and then on again - HDR may not work anymore and Kodi must be restarted to fix this.
Playing HDR video crashes libreelec and TV displays 'No Signal'
That's some progress at least 
I will now do another build with some changes.
I think I can fix Ethernet.
Your vainfo output doesn't look right. Looks like Tiger Lake require Intel's media-driver which I did not include in my build.
I will post another build in an hour or so. Please re-test HDR and Ethernet.
I think the reason why they used PCON is space constraints of the NUC motherboard.
mDP + a native HDMI would require routing separate traces from SoC to HDMI and mDP ports.
mDP + HDMI with PCON does not require extra traces for HDMI, probably DisplayPort MST function is used.
