How do I unlink Xbox account connection from Microsoft's end?

Recently my account was compromised and connected to a random nintendo switch. Now I have no clue as to how to unlink the nintendo switch from my account as the only forums I've seen about this situation if you have access to the nintendo switch. I dont have access to the switch so how do I unlink the account from my Microsoft one?

The problem with unlinking this is gonna be the fact that its your Microsoft account is linked to the switch account and not the other way around.

The linking process starts on Nintendo's end. Therefore unlinking it would also have to be done from Nintendo's end.

Easiest is unlinking your wrong Skype account from your Microsoft account from your computer's browser. Follow the instructions here:

support.skype.com/.../how-do-i-unlink-my-skype-and-microsoft-or-facebook-accounts

After unlinking you can start the linking process again and pick the right Skype account this time around:

support.skype.com/.../how-do-i-merge-my-skype-and-microsoft-accounts

I just bought Minecraft on my ps4 account and when I went to log in, it said that my Microsoft account is already connected to a PSN account. How do i unlink a Psn account from my Microsoft account

Yes

Barmanez' suggestion above to unmerge the Skype from the Microsoft account should work (More details on unmerging here:

support.skype.com/.../how-do-i-unlink-my-skype-and-microsoft-or-facebook-accounts ) Just make sure you use your Microsoft account to sign in on the Skype account page. If that still doesn't work can you please share the exact steps you performed and the
content of the (error) message you ended up with?

It sounds like there's some kind of confusion between Skype accounts and Microsoft accounts. Sign in to Skype on the web with to unlink your accounts, and then you can re-launch Skype on Xbox One to link the Skype account you want to the Microsoft account
that you use on your Xbox.

(For more information about unlinking accounts, see
support.skype.com/.../how-do-i-unlink-my-skype-and-microsoft-or-facebook-accounts)