A typical serving recommendation is around 50 grams daily.
Research suggests that this is about the ideal amount needed to repair any muscle damage caused during workouts or training. But, ultimately, it would be best to consider things like lifestyle, age and weight to determine the most suitable dosage for yourself.

Pre/Post-Workout:
Drinking a protein shake before, or after, your training session can kickstart, and may increase, any muscle protein synthesis that occurs during your exercise - the natural process of producing protein to repair damaged muscles. As muscle protein synthesis can actually increase for up to 3 hours after consuming protein, your body will benefit from elevated blood amino acids.

However, the most suitable timing depends entirely on what you want to achieve and what you prefer.
(changed duration according to https://pubmed.ncbi.nlm.nih.gov/28919842/ )

Any time (Breakfast, Snack, Dessert) :
Protein blends are so versatile and can be enjoyed in many different ways. For example, use your protein blend as a flour substitute to recreate this amazin' Blueberry Maple Pancake recipe. It’s also incredibly convenient to make a quick but nutritional protein shake when you don’t have time to eat a proper meal.