Samsung and LG make high-end phones, and there are plenty of good personal computer vendors. And Windows is certainly a desktop OS that some people choose.
Apple doesn't offer any services unique to itself. It does offer a slick-looking and well-marketed "ecosystem" which is really just a bunch of different things that you could get from other vendors.
So I 100% agree, we need more competition. I was hopeful for a fleeting moment in time with the Firefox phone.
The only way out is either regulation or a whole paradigm shift that renders phones irrelevant. I'm not sure the latter will happen any time soon.
I used to have an old Thinkpad and after I switched from windows to Linux the battery and track pad experience was noticeably worse, even with tlp and all the power management options enabled. It's just one of those rare aspects of OS development that large companies can do that's superior to open source.
Fuck Finder, though.