Permanent residence in Taiwan and/or Japan

APRC…
I think to get permanent residence one has to have an ARC for 5 years…that’t it?

It would be nice to have permanent residence in a 2nd country.

When I taught in China I definitely had no desire to pursue permanent residence in the place. In Korea I felt pretty much the same.

Taiwan is a place that I may be interested in having permanent residence in.

Japan is another country that I would consider permanent residence in.

Is Japan as simple as working 5 years and that’s it?