I feel pretty much the exact opposite about this. I do all this by having my laptop next to me while I'm playing games on a console, and it's far more convenient than trying to switch between a dozen things on one device.
When I play games on my computer, I feel like I'm nailed to that game until I'm done playing it. Many games don't like being Alt+Tabbed out of, and even when they do, I can't keep an eye on it in the background. I can't, say, check a few GAF posts while I'm waiting for the next round to start, then switch back instantly when it does. Or when I'm starting up a game, it basically monopolizes my entire computer while it boots everything up, whereas when a console game's booting, I can just switch to my laptop until it's up.