The fund owns about 1.26% of Microsoft (data seems to be for 2025), which according to Gemini is about $37.5b in today's value. Stock value of Microsoft changed about 5.23% over the last year, which comes down to about $1.96b, so you're not far off...
The US is more than free to dissuade the fund from investing in Microsoft, and I don't think the Norwegian public would mind it being invested elsewhere.
https://www.nbim.no/no/investeringene/investeringsoversikt/#...