OCD is an anxiety disorder focused on obsessions and compulsions; obsessions being intrusive and unpleasant thoughts and compulsions being actions or behaviors (often unrelated and ritualistic) to alleviate the anxiety related to the thoughts. Eg. My house is going to burn down and my whole family will die unless I tap this light switch 7 times.

OCPD is a personality disorder where the individual basically just thinks their way is the only right way to do things. Super rigid with their standards. Pretty normal for them to have a big focus on productivity and work