There are two ways to use this mode in Windows 10. Either click on the Task View icon on the task bar (shown below and highlighted in red), or press the Win-Tab keys simultaneously.

Task Manager can help efficiently manage computer processes and increase performance. Efficiency Mode optimizes lower-priority apps for better CPU usage. Performance tab provides real-time ...

If I had known these tips before, I would probably have been more productive using the Task Manager.

Windows users may know about the Task Manager that allows you to see CPU and memory usage of each task, but Chrome has one of its own as well.