How to export full HDR photos iPhone 12 max pro

Hi, yesterday I took a freak photo. As I was photographing a local monument lit up at night an amazing lightning bolt happened simultaneously. The photo on my photo app in full HDR looks amazing and all the detail of the lightening is visible but when I try to export it, it’s all blown out as if I only have access to the over exposed version. How do I export and share the full hdr version? I found a similar thread on here from April 2021 but there were no answers so just asking again in case things have moved on.