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Not necessarily, the group of people that would be at higher risk of death with pre existing medical conditions would have likely not survived long enough to be in a higher risk group.
For example the average life expectancy of a man in Somalia is a horrendous 53.7.
Average for sub-saharan Africa is 59.As comparison, the life expectancy in Spain and Italy is 81, UK is 79 is China is 74.
I imagine it will spread crazy fast in some of the poorest countries, and hope that the rate of death will be low...
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not so straightforward unfortunately-immune function is impacted by malnutrition, so raises mortality rates for normal flu, reasonable to expect this would be more acute with Covid too. https://www.longdom.org/open-access/protein-energy-malnutrition-and-susceptibility-to-viral-infections-as-zika-and-influenza-viruses-2155-9600-1000489.pdf
..and you can guarantee populations who are starving will be hit far worse by it too.