Discovery Plus allows users to create multiple profiles on their account, but is there a way to change which one's the primary one? Let's see!
On Discovery Plus, users can create up to five profiles, but they're all equal. More specifically, there's no such thing as a primary profile on Discovery Plus.
You can delete any profile you want, change the pictures, edit the profiles' names, and so on. Furthermore, you can also make changes to your account regardless of what profile you're on - something that's not possible on Disney Plus, for instance.
Any of the profiles can make changes to the account, including the password. It's not possible to change the email address associated with the account, however, without actual access to the email account, which is a bonus if you share your account with others - friends and family.
Since there is no primary profile per se, you can always clean out your account and delete other profiles to make sure you know which one is yours. Also, rename the profile and add a picture so it's easy to track. Of course, it would be ideal if you named it and chose a pic from the beginning so that you don't lose watching history and other details from the other profiles when deleting them.