The Logitech G512, G502, and G Powerplay all show that saving to device is supported. However, within the app, the message “Saving Not Supported” is shown. Below is are screenshots of the G502 in OpenRGB and of G502 showing a checkmark for “Save” on the website’s supported device list, respectively
https://gitlab.com/CalcProgrammer1/OpenRGB/uploads/d166c6dccc90131440409445472d40d7/image.png
https://gitlab.com/CalcProgrammer1/OpenRGB/uploads/82bfb9bbee81539eed9de3cfe7354398/image.png