https://www.andrew.cmu.edu/user/nicolasc/publications/Tang-CHI26.pdf
@nc2y Oh thanks for this, just downloaded it to read. I work for the Flickr Foundation which built a funny little tool for downloading one's own Flickr archives (or one for which you have permission) along with social context (comments faves, whatever). Our researcher wrote a report on The State of Social Media Archiving Tools and... surprisingly, it's something which is hard to do.
https://docs.google.com/document/d/1yiQTbyhq4NZ3xR7F1m3qpX4dn82hkL5sEkhkBuW1ZlU/edit?usp=sharing

The State of Social Media Archiving Tools A Report from Flickr Foundation Research Overview: This report systematically reviews social media archiving tools, focusing primarily on platform download tools. We hypothesize that most tools were designed for GDPR compliance rather than long-term pr...