Just a data point from today's ARN-UME-ARN day trip: Maskless crew, except one FA on the return trip and less than 20 pax in masks in total. Staff at ARN doesn't care anymore either and they are mostly maskless, but staff at UME did wear theirs 100% (which is ironic given that ARN staff also works on non-Scadinavian departures, while UME is 95% domestic). Surprisingly, staff at one of Pressbyråns at ARN also wore masks, so I did my shopping at Espresso House instead.

There was no announcement that we can wear masks this time

Masks will likely return on Danish flights due to local regulations but hopefully not on Swedish and Norwegian.