I doubt this has anything to do with GDPR which is about personal information of customers and users. In this case the customer is the company and I don't think GDPR applies.
The announcement email says "As part of our growth and in support of upcoming changes to EU data protection law, we’re launching new tools and features and updating our Privacy Policy and User Terms."
"As part of our growth and in support of upcoming changes to EU data protection law, we’re launching new tools and features and updating our Privacy Policy and User Terms."
That sounds like a convenient marketing bullshit bogey man to me.
Actually GDPR also applies to your personal information that a company holds about you as an employee. However GDPR doesn’t apply if there are other laws that also apply to the data, which will be the case in a lot of circumstances for employees.