The point is just using it gives you no experience to talk about how easy it is to lock down an OS, administering one does. EatYouWell is absolutely right in calling out that you don’t administer linux, as you say yourself: you don’t, you use it. And that difference shows in the falsehood of your comment: it is possible to lock down Linux to levels like a PS5 and anyone administering Linux would know that from their knowledge of the underlying components.