No, the name Goldsmith is from England. But it's also a translation of the German name Goldschmidt, which is a German name.
Seems unlikely. She is descended from King Edward IV. Her mother's mother's name was Dorothy Harrison, an uncommon name in the Jewish world. That would be what matters for her to be Jewish. Her father's name was Goldsmith, a name that can be Jewish but just means that some ancestor was a goldsmith. However, tracing the line back into the 19th century, we find that John Goldsmith was a brickmaker and laborer, not typical Jewish trades in 19th century London.
Tottie Goldsmith's birth name is Caroline Goldsmith.
Gladys Goldsmith's birth name is Gladys Grace Goldsmith.
Jerry Goldsmith's birth name is Jerrald King Goldsmith.
Johanna Goldsmith's birth name is Johanna Cardona-Goldsmith.
Vicki Goldsmith's birth name is Vicki Elyse Goldsmith.
Zac Goldsmith's birth name is Frank Zacharias Robin Goldsmith.
No. Munich is the name of a city in Germany.
Jewish
The name Reimels is not Jewish. It is German and they come from Schiffdorf, Germany. The Jewish spelling would be Riemels.
Olivia Goldsmith's birth name is Randy Goldfield.
In Germany during the Nazi period, Jewish males who did not have names that were thought to "sound Jewish" were required to take the middle name "Israel."