If you have time, I can recommend "Black Wind , White Snow" to better explain modern nationalist Russian politics. Suggested to me by a Russian friend while discussing his flight from the country ¯\_(ツ)_/¯ )

https://blogs.lse.ac.uk/lsereviewofbooks/2016/06/21/book-review-black-wind-white-snow-the-rise-of-russias-new-nationalism-by-charles-clover/

It's from 8 years ago. And very sympathetic to its subjects. Critical but not a hatchet job.