'How to get the latest activities of a GitHub user, including comments

I want to know a user is recently active or inactive on GitHub.

You can see the contribution graph of the user, but the graph doesn't reflect activities such as comments for issues or pull requests.
You can search with involves:USERNAME query (How can I find all public comments for a Github user?) to get commented issues/PRs and sort the result with the "Newest" condition. But the "Newest" in this feature means "the newest in creation date of issues/PRs" and doesn't mean "the newest comment of the user". So I could fail to find recent activities if the user commented on an issue opened two years ago.

How can I get the latest activities of a GitHub user, including comments on issues/PRs?

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Solution	Source