docker for mac memory usage in com.docker.hyperkit
As @GabLeRoux has shared in a comment, the "Real Memory" usage is much lower than what you see in the "Memory" column in Activity Monitor.
This document thoroughly explains memory usage on Mac OS with Docker Desktop and information is excerpted from there.
To see the "Real Memory" used by Docker, right-click the column names in Activity Monitor and Select "Real Memory". The value in this column is what's currently physically allocated to com.docker.hyperkit.
