Your MacBook Pro screen looks yellow mainly because features like Night Shift or True Tone are turned on, which warm the display colors to reduce eye strain. It can also happen due to color profile settings or display calibration issues. Turning off these settings in Display preferences usually fixes it.
Your MacBook Pro screen is yellow most likely because of settings such as Night Shift or True Tone, which change colors to make them more comfortable to the eyes. It may also be display calibration filters or accessibility filters. Settings Check System Settings → Display and turn off. It could be a hardware or display problem should it continue.
