How did Bobby Fischer go to Iceland?

Well, according to the description in Garry Kasparov's autobiography "Chess and Life": After this game, Fischer disappeared again and did not appear in front of the world until 2004. This time, however, it was in a worse place-the detention center of Narita Airport in Tokyo, Japan. His passport was revoked because the game in Yugoslavia violated the UN sanctions bill. Suddenly, Fisher was in the news again. After eight long months, Japan released it. Iceland accepted him as a citizen. Iceland witnessed his past glory, and he is still welcomed by the Icelandic people today.

It can be seen that he was not extradited to China in 2004, but was imprisoned in Japan and finally settled in Iceland, where he died in 2008.