I got a Logitech G915 keyboard about a year ago. Its default backlight pattern without official Logitech (Win/OS X only) drivers installed is a hideous RGB wave

I got a Logitech G915 keyboard about a year ago. Its default backlight pattern without official Logitech (Win/OS X only) drivers installed is a hideous RGB wave pattern with varying brightness. Only reason the keyboard has been usable for me is because someone was generous enough to make and share a program for custom backlighting control on Linux (g810-led on Github IIRC). Like you say, it completely beats out the official Windows drivers in terms of flexibility, not to mention it worked right out of the box and doesn’t force telemetry on the user.