No, Norway and Sweden haven't banned digital transactions
The claims appear to have sprung from reports that the Nordic countries have started advising citizens to keep a supply of cash at home in the case of a digital banking crisis.
https://anessoft.com/blog/ar/macron-evoque-une-possible-reprise-du-dialogue-avec-vladimir-poutine
The claims appear to have sprung from reports that the Nordic countries have started advising citizens to keep a supply of cash at home in the case of a digital banking crisis.