Is This a Big Deal for the Baltic States?

This morning a turkey announced that there was a deal to let sweden and finland into nato. Does this change things significantly, or is it more codifying the way things were in the security sit? i think it's huge its. Because now the whole baltic sea,. except for one short windol, which is a saint petersburg and anclave of calingrid, where russia has access. The rest is nata allied country. So really enhances the military presence as well.