Any flexibility/mobility routine will help new strength come faster, and will help prevent injury. A major source of injury is not completely movements to full

Any flexibility/mobility routine will help new strength come faster, and will help prevent injury. A major source of injury is not completely movements to full range of motion - not squatting below parallel, not locking out at the top of a deadlift, not touching your chest with the bar on a bench press or overhead press, etc. Not everyone has the flexibility/mobility to do that, but you're more prone to injury if you don't. So if you work a mobility program congruently with strength you will gradually get the mobility you need to complete the entire movement and not just part of it.