Applications always open maximized

hello everyone,
I want my terminal and just system applications like settings,file manager to open in the center “not maximized”. I have even specified the row-column size for terminal but most of the applications are opening maximized.
I have set window management->window behaviour->advanced ->window placement = centerd
and tried toggling “remember position” no effect on the problem.
please help me .

Are you sure you didn’t enable/modify something else?

I wish application would all open maximized but that is not the case by default.

Hello Thank You for response,
I did tinker with them but and once set window placement to maximized but now when I am changing it back to centered they open maximized thats not the case with all applications
these are some that open centered & not maximised->add & remove software , tlp UI , rambox.