Blender to unity, importing UV mapped image textures

So I have seen similar questions on the forum, but they are all fairly out of date, and offers no good answers. By simply dragging and dropping a blender file into the asset folder, unity automatically imports the correct materials, assigned to the correct objects. However, the "Albedo" map is empty, and no UV-mapped image textures appear to have been imported. I have seen the suggestions to manually make the maps in other software such as photoshop or gimp, and then manually apply them to the correct materials in unity, but that seems ridiculously convoluted and time-consuming when I already have the finished maps in Blender. If there is some option in the import-settings I have overlooked, or there is a file format that will keep the maps intact during import, it would be a lifesaver :)