A goy that made bread then converted may he still eat the bread? May others eat the bread?
If a non-Jew baked the bread, the bread falls under the decree of pas akum.
Although this prohibition is on account of a concern for intermarriage, the prohibition applies to the loaf of bread, and the fact that the non-Jew converted does not affect the halachic status of the bread.
It will therefore be prohibited for the convert himself, and for other Jews.
Thanks for the creative questions!