Anyhow, very good/comprehensive map, with almost surprises. The only thing that was a real TIL to me was the increase in Belgorod oblast, which is the green region next to Kharkov oblast in Ukraine. Its TFR is low like in most central Russian regions, but it’s apparently a popular destination for Russians from the Far North and for Ukrainian migrants (that is, those who don’t settle outside Moscow, Saint-Petersburg, and Krasnodar, which are the main destinations of internal Russia migration). It is a conservative region whose governor once banned public swearing.
BTW, the @popdemography account is well worth following, even if you don’t understand Russian.