Is there a way out of Russia now? (Flights SOLD OUT, possible restrictions)

Russian people are literally fleeing from Russia right now. Flights for next 7 days are sold out, flights for next 2 weeks are SUPER expensive, and every single land border checkpoint is busy as never before.Here's what I have to share about this. Kilometers-long queues to the borders, my personal experience of crossing one of those borders (the checkpoint from Russia to Georgia), and possible restriction to leave Russia.