Export Photos with All Data

I am trying to export a large number of items from the Photos app to an external hard drive. These items are a mix of still images, videos, and live photos. I want to make sure I carry over all the data I can from the Photos app to my hard drive (for example, including all location/metadata, exporting live photos as videos, using lossless compression, etc).

I found two different options for exporting: Export photo and Export Unmodified Original. I tested both of these options on a single live photo so I could make sure it would work when I try to export the whole batch.

The first option, Export photo, resulted in a single .png file of roughly 15 MB. This image included the metadata and location data.

The second option, Export Unmodified Original, resulted in a .heic file and a .mov file, both roughly 2 MB. The .mov file contained the audio and all of the frames from the live photo. Both of the files contained metadata and location data.

My question is if I'm losing any data by doing Export Unmodified Original rather than Export photo, since the file from Export photo is much larger. Thanks!