I have 3 27" 4k monitors that I use for my work, as a programmer. I used the Power Toys utility to create snap zones to contain my usual apps. I like to have my main code window take up the entire center monitor plus half of each of the "wing" monitors, then I can use tabs to view 5 or 6 code files at once. The remaining space on the far right is for work IM, and the far left is used for Firefox and discord.