The Hotel X in Oslo (well not exactly, about 30 minutes outside Oslo) is no longer bookable via Marriott and thereby there are no Bonvoy options in Oslo area any more.

I stayed last summer for a night again, but such a terrible location in a field close to the highway in the middle of nowhere, so in a way good riddance as Bonvoyers will no longer be tempted to stay here. Marriott has some work to do in Oslo.