Is the age of the Great Migration in ancient Greece the same as that in ancient times?

Obviously, in ancient Greece, the era of great immigration was different from that of ancient times. Combined with the current immigration situation, the main immigrant countries in Europe are Spanish immigrants, Portuguese immigrants, Greek immigrants, Cypriot immigrants, Slovak immigrants, British immigrants and so on. They are all very important immigrant countries, and they have also opened their own immigration thresholds. If you have immigration problems, you can trust me privately or go to your personal space.