While most hardware vendors don't support Linux to the extent that any products with configurable RGB lighting controls will officially be supported, OpenRGB has been one of the successful community projects for allowing many different devices to enjoy configurable, cross-vendor. and open-source RGB lighting controls...
With my testing of the Radeon RX 6800 series graphics cards last month it's been off Linux 5.10 (aside from when using the Radeon Software for Linux package driver) due to the Linux Git state often offering the best performance and features particularly for brand new hardware. As mentioned in the launch day article for the RX 6800 / RX 6800 XT, there was also an issue being encountered on Linux 5.9. Fortunately, that bug is indeed fixed with the recently released Linux 5.9.12 kernel...