I wanted to go RGB free when I built my desktop, but ran into the exact issue you describe. I kinda just shrugged and accepted it, but maybe I should have looked more deeply into their configurability. Off or all white would be a much better look IMO
What drives me crazy is that recently I had to download three separate bloated Electron app packages just to turn off the RGB in my new mobo, RAM and GPU because in 2025/26 we still don’t have vendors using a common protocol to control RGB.
I once tore apart my laptop and ripped out all the blue leds and replaced them with green amber reds. If yoi hate it that much you can just mod it. Soldering iron and a magnifier if you're over 30.