I'm a little confused about the ways to control exposure with filters when shooting onto B&W film.

Are GND filters used in combination with B&W film? If so, what filters or types of filters do you use?

Are polarizing filters used with B&W film? Think so, what do you suggest?

I'm thinking that B&W film use different types of filters than color film, so maybe someone can explain that too and how to best approach the "filter gear" problem?

I only have one lens now, the Fuji W 150mm f5.6 and I know I will likely go with a 90mm and 300mm at some point. I'm not a 100% sure these future lenses will have the same threads so I was leaning towards the square Cokin P rig. But I seriously don't know any better right now.

Thoughts?