I'm talking about on your own machine. Obviously it's different if you're using a work-controlled machine that you don't control.
Defender, on your own machine that you control, never completely stops you from installing things. Seems you just don't know how to ignore the defender warnings lol.
One of the biggest issues here is, like reddit, most of the ban actions are shown as just being done by "mod", not giving the specific mod account that did it.