You can use the command "File > Export > Export Unmodified Original ..." to export several selected images at once.
Select the folder as the export destination that you want to use. I would enable the option "Export IPTC as XMP" to write sidecar files with the metadata. Other applications can use this sidecar files to restore the IPTC metadata with the titles and keywords.
You can also ctrl-click the Photos Library in your Pictures folder, then select the option "Show Package Contents". all your original image files should be in the folder M"Masters", sorted into subfolders by the date of import.
But it is much more convenient to use the "File > Export" option. Tis way you can select all photos from an album together into one folder.