I'm not sure if it's been posted here, but the
BBC has an article on how many people have left Russia, and it doesn't look good for Putin and co, apparently Russia's largest private bank estimates around 1.5% of the workforce, many with the skills that Russia desperately needs to help with the war effort (techs, IT and mechanics), and the sort of skills that are taken for granted in the cities.
They also pulled out more money from the Russian economy early in the war than had been done since the banking crisis in 2008.