One currently cannot use the system tray -> Settings… to change the memory allocation. A known bug prevents that because the controls are disabled. The only way to change the memory allocation is to do this in Hyper-V on the MobyLinuxVM. You must stop the VM to change this. However, this causes all kinds of stuff to break in Docker, and you must then restart Docker. However, restarting docker causes the memory setting to revert back to 2GB!
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