What is the effect of quarterly patch to the customization done thru page composer in the interface?

Summary:

For confirmation if the changes done on the interface will be affected by the quarterly patching update on the system.

Content (required):

A label from in the interface is change/customized using page composer. From "Absence Duration" to "Duration" only. Will this revert back to its original form after the update on the system or not.

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

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