Samsung brings a regular updates to its Galaxy devices. As per the leak, they will plan to bring a new software update in June 2023 which may include the bug fixes and camera improvements. It may be possible this update bring the fix for the HDR issue.
As per the rumor, this new update was discovered while they are testing this new firmware. The company will bring a new feature for Galaxy S23 Plus with version number S916NKSUA2AWEJ in Korea. In past reports, they working on expanding their Galaxy device camera feature like they will bring 2x portrait zoom to S23 Ultra and more.
At last, this upcoming firmware could bring new enhancements to Galaxy S23+ and maybe fix to issue. In the coming weeks, we will know more about it.