Final answer:
The Governor General of Canada during Julie Payette's tenure (2017-2021) was Julie Payette herself, but the position is subject to change and should be verified with current sources.
Step-by-step explanation:
The Governor General of Canada is the representative of the monarch in the Canadian federal government. As of my knowledge cutoff in 2023, the correct answer for the name of the Governor General of Canada would be Julie Payette, who served from 2017 until her resignation in early 2021. However, it's important to note that this position is subject to change over time, and a different individual may hold the office after her. It is always advisable to verify with the latest sources to confirm the current Governor General.