Sweden's probably even more cashless than Norway.

Even if you have cash, which most people don't, it's hard to spend. Grocery stores still take it so it would actually be useful in this situation, but other than grocery stores I struggle to think of any places in my city that accept cash. Maybe some bigger outlets do, not sure, but restaurants, cafes, takeaway places, small specialty stores and the like certainly do not take cash.

Visiting Malmö I see restaurants with "card only" signs on the door and in the menu.

Denmark has taken measures to require most businesses to accept cash, but Sweden doesn't seem to have done that. I keep ~1000DKK at home for emergencies, but I haven't purchased anything with cash for... um... a long time. Perhaps once in the last year.

I haven't handled physical cash for probably ten years. They redesigned the bills around 2015 and to be honest I'm not even sure how they look anymore.

I spent some cash in both Norway and in Amsterdam only last month. Last two times for chocolates, believe it or not.

Same, except I never knew how they looked...

I've been living in Sweden for 6 years. Never touched any Swedish cash. I don't even know what it looks like.