Indo-european had a word for bear, but it's completely eradicated in germanic languages, and replaced with the noa-name: Bear. The brown one. The original rtko/arktos/ursus never made it.
Wolf works the same way in Swedish, the common word is "varg", which is a noa-name meaning cattle-killer. Ulv, derived from ulfr/wulf/vlk exists and means the same thing, but it's archaic.
Though it might be archaic in Swedish, but it is also the Norwegian word for wolf. I'd guess that it is really easy to adapt the archaic Swedish word if the person has lived or spent a lot of time in Norway.
So the word is still there, it's not completely taboo like the original word for bear.
It's not on the face of it a very confidence-inspiring source, but r/askhistorians is as good as Reddit gets, and the poster here wrote an actual book on the subject. Give it a read: https://thingsonreddit.com/things/13812/comments/
I thought it would be more wide-spread, but there's wikipedia pages for it in Swedish, Norwegian and Iceland at least:
I’ve read it now, and that’s so cool. It also cam with some good references I’m going to get into now. Thanks again. :)
Bear: Ari Wolf: Ujk