what kind of Product Manager are you - Specialist or Generalist or T-shaped

A Product Manager is like Water - It fills all gaps.

From a skillset point of view, a PM can be of following types:

1. 
A PM who is specialized in a given product domain (either payments, or search, or recommendations) is called a Specialist.

A PM who has worked extensively in a given industrial sector (EduTech, FoodTech, HealthTech, FinTech, etc.) is also categorized as one.

A PM who has the expertise to build products for a given department (marketing products, or supply chain products, or backend office products, etc.) can also be termed one.

2. 
A PM who has built products for a variety of domains/sectors/departments is a Generalist.

3. 
A T-shaped PM is a mix of above.
The base of the letter T is a vertical bar that signifies depth - This is the same as Specialization.
The top of the letter T is a horizontal bar that signifies breadth - This is the same as Generalization.