That’s not how you calculate mortality rate.
mortality rate -- noun -- The number of deaths per given unit of population over a given period of time. the ratio of deaths in an area to the population of that area; expressed per 1000 per year -- Wiktionary, Creative Commons Attribution/Share-Alike License.
Source: https://www.wordnik.com/words/mortality%20rate
Or: https://en.wikipedia.org/wiki/Mortality_rate
You please take the data as sourced, and calulate your version of the overal mortality rate -- be sure to show your work -- so that we can learn from you.
Data: As of 1 April 2022, 6,144,226 "official" global Covid deaths over twenty-seven months, according to Johns Hopkins University Coronavirus Resource Center. Global population as of that date: 7.887,097,012.
Sources: https://coronavirus.jhu.edu/ and https://www.census.gov/popclock/world
I will look forward to your definition (source(s) please, and the complete calculation.