Ryzen loves extra ram! Look for b-die/e-die ram, you wont regret it! Or so I read before upgrading my PC. At the end of the day, I hesitated and lost the opportunity to buy that 100 dollar ram upgrade anyway because it was sold out and ram was in high demand due to the new CPU launch, and I'm glad I did . Would that extra 100 bucks be better off spent on a better graphics card or processor? It seems so.
https://www.techpowerup.com/review/amd-zen-2-memory-performance-scaling-benchmark/2.html
Frequently overlooked is the performance of the North Bridge.
https://en.wikipedia.org/wiki/Northbridge_(computing)
A good north bridge means your core parts (CPU, motherboard) and I suppose RAM are getting the best possible pipelines.