There appears to be an error in your description of iambic meter–“Iambic, on the other hand, is a metrical foot in poetry in which a stressed syllable is followed by an unstressed syllable.” when everyone knows that the iamb consists of an unstressed syllable followed by a stressed syllable (da DUM):
https://www.masterclass.com/articles/understanding-iambic-meter
https://www.thoughtco.com/iamb-and-iambic-pentameter-2725405
plus The New Princeton Encyclopedia of Poetry and Poetics, just to name a few sources.
English Tutor Answered question April 25, 2020