Captions missing after importing photos from iPhone to Photos for Mac

Hi there,

thanks in advance for looking into this.

I am finally getting into the habit of adding captions to each photo that I take with my iPhone. I need this, as a substitute for keywords or description, as the Photos app in iOS (momentarily) only supports "captions" to be added to the pictures I take. (e.g. location details, 2nd floor - facing east)

Sadly, if I import those pictures traditionally from my iPhone, via lightning, into Photos for Mac, all those captions are gone.

Is there a workaround or setting that can be adjusted.

Also, here are the workaround that do not work for me:

• adding the captions later (I need the captions to identify the pictures, without those details, I am not able to identify the pictures later again on my mac)
• Using iCloud - There is simply no internet / nor the capacity to use iCloud in my case (Also, I already have the max. 2TB subscription - if anyone knows who to talk to to extend this, please let me know)

Thanks again for any input and wish a great day,

Michael