I personally practiced single pyramid push-ups for a month, and I can reach 13. My personal experience is that pyramid push-ups are very good for muscle endurance, and they are only good for muscle endurance, but have little effect on muscle gain. It has no effect on physical endurance. The latest medical research shows that push-ups can't exercise vital capacity.
If you want to exercise your muscles, you can consider training a variety of push-ups at the same time.
If you want to exercise the whole body, it is recommended to consider Indian yoga push-ups.
If you exercise your arms, push-ups with arms are the best.
If you exercise your chest muscles, the effect of shoulder internal rotation is the best when doing push-ups.
Push-ups without muscle but with long strength (the latest research achievement of American fitness system), the more the shoulder blades are outward when doing push-ups, the better the effect.