Is there any workflow that can output HDR photos (like the real HDR kind, with metadata to tell the display to go into HDR mode) for photos shot with a mirrorless and not an iPhone?
Yes. For example, Lightroom and Camera Raw support HDR editing and export from RAW images, and Adobe published a good rundown on the feature when they introduced it.
Yes. For example, Lightroom and Camera Raw support HDR editing and export from RAW images, and Adobe published a good rundown on the feature when they introduced it.
https://blog.adobe.com/en/publish/2023/10/10/hdr-explained
Greg Benz Photography maintains a list of software here:
https://gregbenzphotography.com/hdr-display-photo-software/
I'm not sure what FOSS options there are; it's difficult to search for given that "HDR" can mean three or four different things in common usage.