Monitoring Windows in a Scalable Window
You can set Windows to appear in a window that can be resized to any size so that the content scales in size with the window. This is called Picture in Picture mode. This mode can be useful if you want to monitor applications and other tasks running in Windows as you work in macOS.
To switch to Picture in Picture mode:
From Window mode, choose View > Enter Picture in Picture.
For more information on Picture in Picture mode, see the Picture in Picture mode settings topic.