Is it possible to set Service Type as a mandatory field in Project Tasks?

Summary:

Content (required):

Has anyone achieve to set Service Type field as mandatory and require an input?

I was able to set it to mandatory through Edit Pages (both parent and child components set to "Required") on UI, however it doesn't force a value input

Thank you!

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

21C

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