I can't found the option to enable hdr on hdmi port or any hdr option on my tv. But hdr is working fine with tv apps like youtube, Disney plus etc...
When I check if a update is available my tv say no new update I'm currently on v1300
Some features and settings may differ from a region to another. As you are getting HDR on other apps and sources, that may mean that this is something that your TV has enabled all the time. Are you using the cable that came with the game console?
Yes i use the one that came with the Series X it's a Ultra High Speed HDMI cable, my current region is France did i need to try to switch to a different region?
Have you been in touch with Samsung France about this issue, or shared it on the Samsung France Community (https://eu.community.samsung.com/t5/t%C3%A9l%C3%A9visions/bd-p/fr-tv) to see if others in France are reporting the same?