Hi Michael Hoskins,
Thank you for reaching out to us on the Microsoft Q&A forum.
We understand that you want to complete the Microsoft Learn Path activity using only your employer's organization.
We suggest you follow these steps:
Choose the browser in which you want to perform this activity.
Log out of all Microsoft accounts if you are currently logged in.
Clear the cache/cookies from that browser.
Now, log in to the Microsoft Learn account using your preferred credentials and complete the activity.
Please reach out to us if you have any other queries.
If the information is helpful, please "Upvote" and accept the answer by clicking the "Accept Answer" on the post.