To answer this YES it can be. Its your design wish.

But you should be asking yourself,  is this how you want to implement this?

The name should be meaningful and should help to understand what's the end goal of the stage is?

You should read our knowledge base as well on this

https://community.pega.com/knowledgebase/articles/naming-standards-case-lifecycle-management-components-and-records-classes

Stages describe the phases of a case transaction. For example, an auto loan case might have the following stages: Submission, Review, Underwriting, and Financing. Collectively, stages show the sequence in which these phases occur. As a best practice, every case should have at least three stages – assume that, at minimum, every case is submitted, gets some level of review or validation, and is finalized.

Thank You