It is a style and personal preference. Alcaraz style is different than Fed's. After the unit turn, Alcaraz extends towards 6' o'clock and has more of a circular loop downwards. Compare and contrast with Fed. After his unit turn, Fed straightens his elbow towards 5'o'clock position; more linear and *much less of a circular loop than Alcaraz* ! . It is true. But either style is acceptable. Pick one that works for you.

It's really about how you are winning your points. Alcaraz is playing aggressively but with more shape, it's a comparatively longer constructed point. The shape gives the defender more time but has other advantages like being safer and heavier on the opponents racket. Fed was more about taking away time. It requires more precision and has less room for error. Thats why sometimes he would seemingly just dominate opponents when he was on, and also why he was the king of grass and Nadal on clay. Alcaraz does dominate quickly at time but overall has longer points. If you look up average rally length you will see the difference. (Altho serve probably had a huge factor in that too) Either way, might not the coach's style to play heavy baseline balls.

They do have a different grip and accelerate from a different position. But ultimately almost all top 100 forehands are very similar and good to emulate. The only problem with emulating Carlos or Roger is they both hit the ball with a straight arm which is very hard to do if you don't do it naturally.