Back in September of 2023, post-doctoral researcher Mikhail Nakonechnyi gave a 40-minute speech as part of the Joseph C. Miller Memorial Lecture Series at Bonn University. The speech focused on the unexplored mass death of freed Gulag prisoners on their return from the camps. The speech is also available on Youtube here: https://www.youtube.com/watch?v=iiysR5pRG1M. 
Gulag Echoes in the “multicultural prison”: historical and geographical influences on the identity and politics of ethnic minority prisoners in the communist successor states of Russia and Europe