not able to access the bottom right of my screen on the sims 4

a_p_harrison see this thread related to the camera notch in the Mac display - Re: ❗️ [WORKAROUND] Pointer clicks off-target on Macs with display camera notch | EA Forums - 11031757

Either play in windowed mode or click once on the base game app to select it then click on File > Get Info in the menu bar then check the box next to Scale to fit below built-in camera in the info window.