What annoys me with all this sort of stuff (including things like completing a purchase on Amazon and them pushing Prime) is whilst there will be a button somewhere to continue without agreeing to whatever it is they're pushing, it will be extremely small and often not located in an obvious place on screen.
Ok she's 80, but mum phoned me a couple of weeks ago re this Win 11 thing and, to her, it looked as though she had no choice but to go with it. I talked her through what buttons to press to continue as normal, but they don't make it easy.
Yeah yeah I get why, nevertheless it's frustrating.
At least they ask you first. When I was on 7 a few years ago, I left my pc running unattended for a few mins. When I came back to it, it had started automatically converting to 10. Pulled the plug and did a system restore to get it back to how it was. Had to go to the lengths of installing a program called Stop 10 so it wouldn't start converting to 10 again when it had a mind to.