If one company made a laptop trackpad as good as Apple's that worked perfectly in any mainstream Linux distro I'd buy their laptop in a heartbeat. I've never seen one that fits that bill though.
I guess Apple simply got their driver nicely fine-tuned to their own hardware, and that's it.
Furthermore, Apple's touchpad is infinitely superior in terms of hardware and that was a huge factor for me. I can't count the number of crappy Dell touchpads that have broken and stopped because they seem to be made of cheap matte plastic. They don't feel good to use physically and no amount of software tuning will fix that. My touchpad on my 2015 MBP is solid glass and should never break from regular use because it isn't actually a button.
You mean like you depend on Apple to maintain their drivers? What difference does it make if your OS auto-installs the latest driver via MacOS update or if the Lenovo Updater auto-installs a new driver through their own updater? Driver conflicts are a pain in the ass, I'll grant you that, but those are pretty rare these days. At least in the windows world.
It's super easy to get a great phone touchscreen, maybe just grab the glass and touch matrix or whatever, but that would surely be better than the sorry state of affairs of current touchpads.
Everything works great out of the box on Manjaro including the trackpad.
Size isn't exactly up to Apples though, if you're using later models.
Last Macbook I used was a 2012 15 inch MBP.
I presume that people have linux running on modern macbooks -- would that fit your needs?
New macbooks are not universally supported by Linux.