Nope not at all, in some cases I would say it's better. I use multiple monitors but prefer each monitor in full-screen mode. That allows me to use tmux on my ma

Nope not at all, in some cases I would say it's better. I use multiple monitors but prefer each monitor in full-screen mode. That allows me to use tmux on my main monitor and slack or a browser on another. When I'm writing code on my laptop alone I just have one open at a time, which in some ways is more immersive and allows me to focus on one thing. It's usually at home alone with no other distractions so that is also a factor.