The protein base in this product is beef protein hydrolysate. Hydrolysis means the longer protein chains have already been partially broken down into shorter peptides. This does not make it a medicine or a substitute for food, but it explains why hydrolysed proteins are often chosen by people who want a protein source that requires less initial digestive breakdown than some intact protein forms.
Compared with whey, the key difference is the source: this product is beef-based rather than milk-based. That matters for people who avoid dairy or lactose, or who do not want a whey protein powder. Compared with many plant proteins, beef protein naturally provides a complete amino acid profile, including leucine, isoleucine and valine, which are amino acids involved in muscle protein building and repair processes after training.
Because it is described as practically free of fat and carbohydrates, it can be easier to place into meal plans where protein is being increased without adding much from those other macronutrients. The strawberry flavour also makes it suitable for simple shakes with water or plant-based drinks, as well as mixing into foods where a sweet fruit flavour fits.
As with any concentrated protein product, the useful question is not only the source but how it fits your full daily diet, activity level and tolerance.