I didn't mention the other two things because they aren't available settings. I mentioned the one that is, because I thought it might be helpful.
Aside: Why do people jump to snark so fast?
Now the aside being put aside, I have no idea why you have a setting and I don't, as I'm on the latest updates. Could be that Microsoft is doing some A/B testing? And is the left positioned taskbar working fine for you? I still won't switch until at least drag&drop comes back but it would be a glimmer of hope.