Kodi determines audio/video capabilities based on EDID content on the HDMI connection so if the EDID output is bad or broken it will cause features to be not-detected. It's unusual for a modern TV to have bad EDID data, but it does happen.
I'd suggest experimenting with other HDMI cables and different ports on the TV, as different ports often have different capabilities and sometimes you need to enable e.g. "Deep Colour" modes in port settings to have HDR or 4K60 support (there are no standard terms; vendors make up different names).