The wrists break, or hinge, in two ways in the golf swing.
Put your palms together with your fingers pointing away from you. Now hinge your wrists so your thumbs point back toward you. This is vertical hinging, which every golfer does.
Set up your hands like you did before and this time hinge your wrists from side to side. This is horizontal hinging, which fewer golfers do.
The complete golf swing must include both types of hinging.
Vertical hinging takes care of itself. That’s why every golfer does it. Horizontal hinging must be deliberately done.
When you take the club back, and your hands get to about hip height or a bit before that, start bending the right wrist (left wrist for left-handed golfers) back on itself.
Don’t do it all at once, and finish the hinging by the end of the backswing in a position that is comfortable. You will feel the bend, but it should not feel forced.
When you begin the forward swing, preserve your gain. Keep that wrist hinge as you start down. Let the momentum of the swing release all hinging as the club swings into the ball.
This is one way of generating club head speed. It’s free, you don’t have to force it. Just enjoy it.