Why warm-ups went dynamic
A pre-lift warm-up aims to raise tissue temperature, increase blood flow, rehearse the day's movement patterns, and prime the nervous system. Dynamic, position-specific drills do this while keeping muscles ready to produce force. Prolonged static holds before heavy or explosive work are now generally avoided in warm-ups because they can transiently reduce force and power output.
Position-specific means the drills resemble the lifts ahead: hip and ankle openers before squats, thoracic and shoulder work before pressing, hinge patterning before deadlifts.
A sensible structure
A common sequence is a few minutes of general aerobic work to raise temperature, then mobility drills targeting the joints the session will load, then ramping warm-up sets that approach the working weight. The goal is readiness, not fatigue, so volume stays low.
Individualizing it
The right drills depend on the lifts, the individual's restrictions, and the environment. A brief static stretch for a genuinely limiting muscle can still have a place if followed by dynamic movement. This is general educational information, not medical advice; anyone returning from injury should warm up under guidance from a qualified professional.