I’m Finnish and I lived in Montréal for a short while, absolutely loved it. Didn’t speak any French when I moved there, but I took a language course meant for immigrants (I think it was the municipality that offered those courses? Didn’t cost anything as far as I can remember, but it’s been a while) and it didn’t take me all that long until I could get by with just French in most “simple” situations like stores, restaurants, what have you.

Like others have been saying Montréal is pretty much bilingual so it’s easy to get by even if you don’t speak French, but I’d definitely recommend studying French