As Ed McMahon used to say, "You are correct, Sir!"

However, there are more complications. If no new cases emerge at all, the death rate will still go up because there are some ill people laying in hospital beds right now who haven't died yet but probably will eventually. That will bring the rate up. On the other hand, there are certainly more cases out there right now that have not been tested and never will because they are just not very sick. If you can count them, then the death rate goes back down.

That mortality rate that you quoted of 3.6% was based on Chinese deaths which were unusually high, and has since been revised down several times, in some estimates as low as .05%. China has many compounding factors to kill more sick people such as heavy smoking, air pollution, and unsanitary conditions. Italy's rate is also extremely high, but South Korea is right at or just below 1%. Israel has the most number of people infected without having a single death, 304. They list only four of those people in serious or critical condition.

Here's the master list of all countries that updates every day:

https://www.worldometers.info/coronavirus/