[Page title options] Modified node title also show in some page, not just in Full content

Hi, sorry if there's anyone already posted about this before.

I'm using 'Page title options' feature to modify my node title in full node display (Full content).
But for some reason, the changes is not just happen on the full node display, but also on home page, and Views page also.
Is this supposed to be like this? Or is there any settings that I should know?

Thanks