On your backswing, you generate the coil like a spring around the hips. If you start your downswing with the arms, then you are probably going to 'waste' the potential energy stored in this coil. Then in order to generate the clubhead speed, you need to employ a lot more control and effort to your arms and hands.

Above is my personal opinion. On a sidenote, if you are a beginner, do seriously consider getting some lessons and maybe some books (I highly recommend The Modern Fundamentals of Golf by Ben Hogan). I'll explain to you why. I've been golfing for 10 months myself. Same as you, gone through so much 'information', and I'm sure you know by now, a lot of them contradict.

I've gone through 10 months of experimenting everything under the sun, trust me What was effective for me? Ben Hogan's book. He tells you (and draws in detail) how to grip the club, your posture, the works. If you follow that before you get flooded with a lot of other info, you are most probably going to start out on a much smoother path.

Feel free to msg me if you need me to share more experiences Some of the other members here are also extremely helpful and will gladly share their experience so you can learn from their mistakes

Enjoy!