Generic information regarding hotfixes,

Hotfixes address general PegaRULES Process Commander (PRPC) issues related to security, enhancements, and errors that may occur in rules and/or code(those rules part of base PegaRULES application). When user takes a RAP or product rule for migration/deployment in the higher environment, it includes only built on application(your application ruleset not PegaRULES), refer below:-

Thus, the changes made by the Hfix didn't get migrated irrespective of committed or not, thus it's neither operator specific nor environment specific.

Additionally refer this article - https://pdn.pega.com/community/product-support/question/hotfix-management-procedure-pega-721

And read the document link provided in the last comment of the post for detailed description about hotfix manager and different types of hotfixes.

Hope it helps.