How can I sign out Microsoft Account into Local Account?

When I updated my Windows 10 to 11, I created a local account.

Today, with my new employer, I was given a company email and invited to use Microsoft office 365 family (small small business). Custom email domain name and everything. 

In order to accept the office license invitation, I created a microsoft account with the new email. That went fine and now I wanted to use the desktop version of excel. I signed into the app with the licensed account and now I see it changed my entire PC to a connected profile and I dont know how to change it back to a local account without making a new user. But of course that is like a fresh install. I dont want my employers email account tied to my PC at all. I just wanted to use the office suite and thats it. 

I tried following all the instructions online but it seems a critical option of "Click Sign in with a local account instead" doesnt exist for me. 

Can anyone offer any insight to why it did this and how I can sign out to avoid making a new user profile on my PC? I am more than happy to share screenshots so I can be guided easier. Thanks!