You need two things to make breaking putts: 1) a stroke that starts the ball on your chosen line and 2) the correct amount of speed so the ball can hold that line all the way to the cup. Good line good speed—nailing one isn’t enough.
Granted this assumes that all putts are hit with perfect speed which for most purposes is one that carries the ball 17” past the hole in the event of a miss. Hit any harder the ball on the “high” line might lip-out. And with less speed the low ball would be more susceptible to the “lumpy donut” of footprints around the cup and tend to miss low.
As you can see the putter—by a large margin—is the most frequently used club in your bag while woods and wedges come in a close second. So here’s my question to you: Using this information is there a better way to apportion your practice time?