I don't understand what you are talking about. My Linux-first laptop (Librem 15) has been working flawlessly for many years with no issues whatsoever. Suspend, WiFi, GUI work as expected 100% of the time.
That's great to hear. Now, compare that to the sample size of people running Linux on custom-built desktops, Chromebooks, cheap-o laptops and Macbooks, all of which are "supported" by the Linux kernel. Starting to get the picture?
Furthermore, even some commercial "designed for Linux" laptops like the Dell XPS Developer Edition have critical features missing like suspend/sleep, both of which work better on unofficially supported machines like Thinkpads. You're welcome to support whichever hardware vendors you choose, but you absolutely can't pretend like all hardware works "fine" on Linux to the same degree it would on MacOS or Windows.
Did you try to run Windows on a Macbook? Do you expect that it should work flawlessly? Will you blame Microsoft or Apple for its problems? Same with Linux.
Linux tries to support "all" hardware, but you should not expect that it's possible to actually do it perfectly.
> commercial "designed for Linux" laptops like the Dell XPS Developer Edition have critical features missing like suspend/sleep
So you should stop trusting Dell with their hardware. Why do you blame the Linux community for not supporting proprietary hardware without documentation flawlessly?
> pretend like all hardware works "fine" on Linux
I never said that all hardware worked fine on Linux. There is no OS with which all hardware works fine, and can't be. I'm just suggesting to rely on actually supported hardware, which is rare but pretty much possible to find. See also: System76.
Furthermore, even some commercial "designed for Linux" laptops like the Dell XPS Developer Edition have critical features missing like suspend/sleep, both of which work better on unofficially supported machines like Thinkpads. You're welcome to support whichever hardware vendors you choose, but you absolutely can't pretend like all hardware works "fine" on Linux to the same degree it would on MacOS or Windows.