I just started reviewing ASRock B850/B860 motherboards, and I noticed that they are listing a
third-party SignalRGB software. It supports various brands and devices. For example, it manages RGB on an ASRock mobo, Kingston or G.Skill RAM, and Kingston keyboard and mouse. It still can't handle my Colorful graphics card, but nothing does except for Colorful software. I saw mentioned Corsair devices too, and Corsair soft is really annoying.
The SignalRGB link suggests it's for ASRock, and I didn't try it on other mobo brands, but it seems free and requires registration for some additional features. I guess it's still worth checking.