Developed a habit, like checking that I had my keys and wallet, when taking my laptop anywhere. Grab the mouse, grab the power supply, throw them in the bag, because the trackpad was always nigh-unusable and the battery life was only good enough for hopping between outlets unless you had a (charged!) extra battery to carry along.
Took some time to break those habits after switching to Macbooks, where neither was necessary unless I'd be away from my desk more than a day. Unplug laptop, pick up, walk away, don't think about anything else. Go figure, a portable computer that lets you treat it like it's portable.
If you have a Mac desktop and don't like the mouse (cause they always did suck), the natural replacement is a third-party mouse, not an external trackpad. I think Apple and its userbase have always been more laptop-oriented, though.
I wonder if Microsoft and Linux developers tend to use a mouse over a trackpad? If they don’t use a trackpad, it isn’t a pain point for them and thus not something that would get prioritized. Apple (on the other hand) has historically had horrible mice (pretty, but poor ergonomics) and solid developer laptops, so trackpads get used more. [1]
Regardless of the platform, if a developer feels a pain point, that particular issue will be dealt with sooner. If windows/Linux trackpad usability is “good enough”, it’s not going to be a high priority.
[1] source: me. I’ve used many Apple mice and loved the Magic Mouse, even with the strange charging port. That is until I started having carpal tunnel inflammation and switched to a trackpad and finally a more traditional mouse.