I managed to escape the country yesterday, had to flight to Egypt of all places, because ALL (even business) tickets were sold out. The recent news is that starting March 6 all international flights are suspended, the trap has closed. The disheartening thing is that even if you never supported Putin, other countries treat you as enemy. I am at Georgia now and banks refuse to open bank accounts to Russians, and I need…
Depending on where in Russian they live. They could flee in their car. Finland seem to be popular (https://www.bbc.com/news/world-60624500). The Baltics, Norway and possibly Sweden on a ferry or boat could also be options.