HELP!!!!

My aunt lost her facebook account to a hacker about a year ago, I got the Facebook account back but, I cant seem to find any way to get all of her photos and videos back, she uses a samsung phone but the samsung cloud didn't have any of the data that I was looking for, I originally tried the facebook archives but everything gets deleted after 3 months, I looked at her google photos account and thankfully most of them were there, but not all of them, I also did check the google archives but nothing showed up there. Most of the photos and videos that is still missing are from years ago taken on older samsung devices but then deleted after they were posted onto facebook. Do you think there is a chance to recover them from her old devices? If not, let me know how to get them back. I don't exactly know what data to look for, I just know that they are photos and videos.