It doesn't matter. The permanent residence will be cancelled in the following three situations. The first is that he no longer lives in Sweden. The second one was found to have provided untrue information when applying for residence/permanent residence in that year. The third is serious crime.
The Swedish government stipulates that all foreigners holding visas for more than one year must apply for Swedish slogans. This figure is very important and is the basis for applicants to enjoy everything in Sweden (such as applying for welfare).