Bad noise when pressing the clutch pedal that goes away when you release the clutch pedal is the throwout bearing.
Bad noise that happens while driving which goes away when when the clutch is fully depressed and gearbox in neutral, but comes back again if idling in neutral with clutch pedal released is input shaft bearing.
Bad noise that happens when driving, goes away when the clutch pedal is slightly depressed, but clutch is still engaged, is probably the throwout bearing, and it's failure is probably caused by mal-adjusted clutch linkage, since the TOB should not be in contact with the clutch plate fingers if you are not pushing the clutch pedal, and it obviously is if it's making noise going down the road.