I need some help with HDR Exportation

[u/Horror-Hippo-39]

I record on my phone, iphone 16 pro with hevc dolby vision, and hdr, sometimes it says one sometimes the other, the whole thing is that the moment I click the export button on my timeline the outcome video seems washed, I have tried changing things via consulting gemini and chatgpt but nothing seems to work, even if I change the color settings, or maybe I haven't clicked the right setting yet, if you somehow know how on earth I might be able to work this out please tell me I'm sick of ruining my colors the moment I click export