As much as I despise MS and think they are equally incompetent, I don't think it's a good idea to lock down Windows. They will stop providing kernel access to 3rd parties at first, then a few months later you will only be able to download software from the Microsoft Store.
Yes, it's a security issue but them being allowed to close down their OS sets a dangerous precedent that will make Windows even more shittier and enshittified than it already is.