I can’t speak for others, but I’ve found color calibrating my monitors to be a chore and not entirely accurate. So I just work in a CMYK color space in photoshop, Illustrator, and/or InDesign, get things roughly how I want, print a sample, adjust, print, etc, until the color is to my liking.

Different printers will also represent colors differently, so I either need to print on the same type I’ll eventually have the job printed off of, or understand how they treat the colors differently so I know roughly how it will change. That’s also a reason I keep multiple printers around.

Lastly, if I’m designing for screen only, I’ll just use an RGB color space and check it on multiple devices/monitors to ensure it looks good everywhere. That often means compromising on the exact color, but the goal is to make something pleasing for as many use cases as possible.