These are the issues they're worried about? None of the numbers I saw while scanning look particularly worrying, and I doubt there's ever been a country on the face of this planet for which you wouldn't have been able to produce a similar list of issues of this magnitude - including past Norway.
They're worth paying attention to, but not sounding the alarm bells over.
That's because there is a default bad assumption that because they are so wealthy that no problems should exist, similar to how very rich people are seen. Looking at other wealthy petro-states (and people) around the world, that's clearly not true.
But relatively speaking I don't think there's a country that wouldn't trade most of their problems for Norway's, with the possible exception of their aging population.
I live in a wealthier US state and the folks in my city's subreddit whine - and they whine a lot.