I use an MSI laptop and a few extra screens when needed. I don't force myself to use extra screen unless I need them for the given task. I prefer to use as few screens as needed and I don't just place things on a second screen just because I can. One of the reasons I like my MSI is because it has 6 extra heat pipes and 2 amped-up extra fans. I don't game, but I often run the CPU so hard that the laptop would overheat if I didn't have this. With my MSI, I press a hard button on the chassis and it fires up the extra fans, cooling down the machine within 2-3 minutes usually. This occurs because I tend to run 3-4 virtual machines at the same time as well as do crazy string searches and encryption-related search stuff. For this reason, before engaging in that activity, I usually pre-game the fan button so that it never gets hot in the first place. It is loud though, but I can deal with that since I work remote anyway.
This screen usage seems to increase ergonomics, efficiency, and reduce eye/neck strain. The setup works well and I'm still on the fence if I ever want to get a desktop setup again. The main reasoning behind my mobile setup is that I I don't have to worry about doing certain things on the desktop and then forgetting to transfer them to the laptop when I go out and etc...
PS: If anyone is aware of any other brand of laptop that come stock with extra cooling, aside from "gaming" laptops, I'd like to know.