You made me realize I haven't fired up my Windows 11 machine in a while, so I went to check it -- even re-enabling the copilot toggle ... which weirdly did nothing. Then I remembered I had lobotomized all the AI and assistant "features" a while ago.
I'm a little disappointed: I wanted to ask Copilot "How do I purge you from my machine?"
I'd suggest a cheap used or spare laptop/desktop with a beginner friendly distro like Linux Mint Cinnamon to learn on. Just use it for casual stuff -- you'll pick up what you need to learn as you go.
That way if something breaks or you don't know how to do something while you're learning you're not "stuck".