so what you mean is that control center should show up in the monitor which you hit the corner, right ?

In fact, the main display. but another action could fix this issue... is force to open the menu on the opposite side, of course its a workaroud but is better than the actual scenario.

Plus:
An idea to the future is put the shortcut (gear) at the taskbar closer the clock. bc when we click on it, we already are in the correct side of screen to handle with the menu.