The image on the Nintendo Switch screen is distorted or the sound is cutting out

Are you playing online?　
→When playing online, the sound or display on the console may be disrupted depending on the quality of your internet connection. 

Is it possible that radio wave interference could be disrupting the console?　
→There may be devices near the console that can disrupt radio waves, such as audio visual equipment, microwaves, cordless devices, and metal TV stands or racks. Try moving the console to a different location and see if that fixes the problem.