Why does my 2001 Ford Focus SE Wagon have a vibration?

I have new motor mounts, new dog bone mount in the rear, new plugs and wires, no check engine lights yet there's this "vibration" when I'm idling.

Sometimes bad sensors like MAF ones can cause an engine to idle rough. But usually you would have a check engine light.

These sort of annoying faults can be hard to trace .ideally a ford technician with usual tanner checks. Ought to be able to see if anything is untoward. Not all cults. Are covered though but experience and access to Ford support engineers. Will solve issues but often takes time and effort. A normal plug in scanner may not see if w have say an ejector pulse issue etc but a full diagnostic check at a dealer can look at all parameters.