Meaning of "So yeah"
Solution 1:
"So yeah" is a filler phrase in English, especially for the younger American generations.
There are a few specific uses of "so yeah". When starting the sentence, it most commonly is used as an interjection to get conversation started. Or, as a pause while the person gathers their thoughts.
When ending a sentence, it often is used in places where the spoken emphasis and pacing of the sentence are inconsistent with the content, so the speaker uses "so yeah" as a way of completing the sentence. Lastly, it is sometimes used as a way to wrap up a speech or thought, in a similar way that "over" is used on the radio. So yeah.