I'll use this thread as a FYI to anyone wanting to get off facebook but want to keep their photos/vids, you can do a mass export to Google photos:
https://www.pcmag.com/how-to/how-to-...-google-photos
This was the only thing holding me back from deleting my profile for a long time, once they enabled this feature I exported everything and said adios. Handy dandy.