I am in Norway with a permanent residence permit or want to apply for Norwegian citizenship. Are there any changes in the rules that affect me?

There are no changes in rules or political signals from the Norwegian authorities indicating that Russian citizens with a permanent residence permit will be sent back to Russia. If you have a permanent residence permit, you keep this according to the ordinary rules.

You can also apply for Norwegian citizenship if you meet the conditions and wish to apply. From the Norwegian authorities' side, there are no restrictions on the possibility of having dual citizenship. As the situation is now, the war does not affect the status of Russian citizens who are in Norway.