I don't mind RGB on Keyboard's, but inside the PC I wasn't really interested until I saw the Lian-Li fans that I am now using, because whilst they do add abit of colour, they are not overly bright etc, meaning they don't look like Rainbow Puke!
I could just set them to one colour but I honestly don't mind them at the moment the way they are.
I am still sort of tempted to learn how to make my own case, but I always go over the top with things so would probably end up building a case with 30+ fans
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7900X3D, 64Gb Corsair 6000Mhz, Gigabyte Aorus RTX 4080 Super, Samsung 980 Pro 2Tb NVME

2x Unraid Servers, 180TB Storage between Supermicro CSE-846 & Dell R720 with DS4246 48 Drives total, 4x Intel Xeons, Quadro P2000, 96Gb DDR3 each