Yes, when learning it it is useful to know that :wq can be decomposed in to :w and :q and combined in to :wq! and :w! and :q! But once you know that I think it

Yes, when learning it it is useful to know that :wq can be decomposed in to :w and :q and combined in to :wq! and :w! and :q! But once you know that I think it's simpler to just type ZZ