Boyfriend material V/S Husband material

See in our society and in dating culture we often use wife material and girlfriend material. I think every person has both characteristics just there is a certain time and triggers which can make them evolve their new personality. so I don't know what typical definition says but I know this much that gf material is referred as a bit casual word and wife material is a bit formal, correct me if I'm wrong I've never been in relationship so I'm bit ignorant to these concepts. And likewise in our men side also BF material and husband material can exist so can you explain what are the characteristics of those two and what is the difference.

I'm just here to take part in the discussion and get some new perspective.