What is the impact of removing skill level/proficiency levels from dynamic skills?

Summary:

We have an ask from client to not use proficiency levels for skills. Has anybody implemented dynamic skills without proficiency levels? How does the skills functionality work without proficiency levels? What is the impact of removing proficiency levels on other dynamic skill functionalities like career ambassadors, endorsements, skill recommendations and validations, learning recommendations etc?

Content (please ensure you mask any confidential information):

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

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