44rh1n, I’ve successfully finished a 4K edit in Resolve using Dolby Vision and adding additional color correction. When I export the project, for example to an HEVC mp4, the final result looks beautiful. Note: the project settings are just as you specify (also the output is of course REC 709).
Here’s my question: when playing on a TV the HDR notification icon comes up signaling that this is HDR content. This this is just a flagging issue and this is fully an SDR export, correct?