Thankyou yosyp.vj.
You are right. Windows Graphics Performance Settings were introduced in the April 10 2018 Windows 10 update (Version 1803, build 17134). These settings take priority over driver settings for an application, such as the NVIDIA control panel. I don’t know about AMD but I suspect it is the same.
As you say, these settings are only effective for a laptop with dual graphics where power saving is possible.
I will be including a direct link to access these settings in the next version of “SpoutSettings”. I will also extend the diagnostics in “SpoutPanel” to show the Graphics Preference for a Sender and add some SDK functions for developers.