Once of my latest here relates to the topic:

https://medium.com/@olesia-filipenko/why-great-russian-literature-is-fake-f04630fe61c4

And Suspilne's project on YouTube perfectly describes and analyzes this issue (Eng subs are available): https://www.youtube.com/watch?v=Hy2mnmSDM_U (Swan Lake on the ruins: How does russia loot art?)