Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
I requested a call back to talk about this issue but after 2 days...nothing.
Today I succeeded to get in contact with MS via the chat function on the MS webpage that compares the different versions of MS 365.
I got in contact with Maria who was very helpful to manually cancelling and halting as of today my MS subscription that was Microsoft 365 Personal which was running till late April. She than helped me to buy the MS 365 Family classic which comes without the intrusive Copilot. She also turned off the Auto-renewal for me.
After uninstalling MS 365 personal which was "upgraded with Copilot beyond our blessings" and installing the Microsoft 365 Family I finally got rid of Copilot!
Happy to be able to work with Word, Excel, Powerpoint and Outlook in a focused way, without being pestered by the intrusive Copilot.