Please advise on OOTB customization

Dear Experts

We want to prevent developers from unintentionally customizing OOTB settings and ensure we remain within ServiceNow's support scope.

Question:
Please advise if there is a way for platform administrators to verify that unintended out-of-the-box settings have not been modified.
We are considering incorporating this verification into our change management process before applying update sets.

Thank you in advance.