Norwegian here. I don’t think it’s “trust” in the literal sense, but more in line with “viewing them as a neutral yet benevolent institution with integrity”.

The latter is more or less the image they’ve tried to portray for ages, and with reasonable success, since they don’t really have much de facto power. However, the recent stupidity have caused many people to question what purpose they serve to begin with.

And just for the record: I don’t really care that much about them, neither for nor against. Bigger portions of my taxes go to stupider things.