Micron E-die can be easy to setup.
My kits do 3933/4000Mhz @ 1.200V XMP settings 4x8Gb (18.104.22.168.80) (1-3clicks OK)
3800Mhz 1:1 1900fclk was no issues what so ever. Though my kits aren't the best ones for main timings, there are newer better micron E-die today that do lower tRCDRD than mine do.
3800 CL15/22.214.171.124.66 580 1.450V possible
3800 CL126.96.36.199.66 580 1.550V possible.
These can run 4600Mhz 2x8Gb or as I've currently trying to fix up 4266Mhz 4x8Gb.(work in progress)
I've got some 16nm variants from Kingston.
Gigabyte X570 AORUS XTREME, Ryzen 7 3800X 4.4Ghz, 4266/1900 MEM/FCLK, 188.8.131.52.76.tRFC 650 1T 1.600V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron E-die 16nm)
OLD: Biostar x470GT8 Ryzen 7 1700 @ ~4.0Ghz CPU, 3200Mhz RAM ...