Is it normal for max CPU usage to jump around?

I’m noticing the CPU max use is jumping around to over a bar. With a new project and nothing add to it and nothing playing back. Just at idle the CPU meter is shooting up well over the first of four bars on the meter and well into the second one at times.

That’s roughly 30 percent of my cpu at times is somehow being used by C11 at idle?

This is with a Ryzen 3600 in Windows 10 on Cubase 11.