What makes anybody a great putter isn’t just the stroke. It’s the ability to read greens and sense of feel. All your putting stroke can do, at best, is roll the ball down a line with a good sense of distance. If your read is off by 3 inches, or speed is off, you miss. Common stroke killers include decelerating through impact, not having your eyes over the ball, and lack of a consistent pre-shot routine. If you want to copy someone, what works for Bryson might work for you, but might not. Bear in mind how his mind works. If you play more by instinct, his techniques may not be for you. Whatever method allows you to roll that ball down your line with a good sense of touch is the method for you.