As for screens with mutual capacitance, when water gets on the surface of the display, it receives conflicting signals. As a result, the smartphone also cannot respond to your actions as it should.
And even if you wipe the screen, the system will still need some time to return to its original performance. Until then, the display will continue to dim.
Fortunately, some displays now have special scanning technologies that make it possible to avoid confusing the touch of a finger with water. They combine scanning of self-capacitance and mutual capacitance.
