When I first got my GTX-1080 I was able to turn off the bright LED's on the card with the Geforce Experience (which I felt was a stupid place to put that option). But now, Geforce Experience is ...

NVIDIA releases version 1.7 of the GeForce Experience, includes new ShadowPlay in-game recording, 4K optimization, and GameStream support for Shield.

Finally a more frivolous addition to the GeForce Experience is the GeForce GTX LED Visualizer which lets users control the brightness, flashing, and pattern displays on their LED-equipped NVIDIA ...

To control the logo lighting, referred to by Nvidia as the 'LED Visualizer', you will need version 1.7 or higher of the GeForce Experience software.

Another recommended method was to try the Nvidia LED visualizer, except that is apparently no longer included in their drivers and several accounts suggest that it's not supported for the RTX 20 ...