User Login Activity Query

Summary:

We have a contractor and would like to measure his level of effort within our company.
Is there an existing query or report that shows how many times a specific user has logged into our environments (for example, a user session or login count)?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

26a

Code Snippet (add any code snippets that support your topic, if applicable):