Should C: be on shared fast SSD or single slower SSD?

[Emilite]

New 3900X Windows 10 build with a 1TB PCIe4 M.2 NVMe drive and several old SATA SSDs.

I was planning to create an eg 100GB partition on the 1TB NVMe SSD for C: and use the rest of that drive for a D: partition holding apps and games. But then C: will have to contend with drive accesses for the games and apps, and vice-versa. So I wonder if it's better to put C: by itself on a small SATA SSD. Slower technically, but no interference either way.

Any opinions? Thanks.

 

[UsandThem]

Just leave it all on one drive / partition (such as C).

A PCIe 4.0 SSD is plenty fast not to worry about any of that kind of thing. There's plenty of bandwidth for the OS and programs.