Pause Docker Desktop
When Docker Desktop is paused, the Linux VM running Docker Engine is paused, the current state of all your containers are saved in memory, and all processes are frozen. This reduces the CPU and memory usage and helps you retain a longer battery life on your laptop.
You can manually pause Docker Desktop by selecting the Docker menu and then Pause. To manually resume Docker Desktop, select the Resume option in the Docker menu, or run any Docker CLI command.
When you manually pause Docker Desktop, a paused status displays on the Docker menu and on the Docker Dashboard. You can still access the Settings and the Troubleshoot menu.
The Resource Saver feature, available in Docker Desktop version 4.24 and later, is enabled by default and provides better CPU and memory savings and the manual Pause feature. See here for more info.