Macbooks were never good choices to run Linux on, and it's naive to think it would've gotten any easier. Apple's version of EFI is slightly different than the standard. The laptops are filled with custom hardware that you won't find anywhere else. It took Dell months of effort by a dedicated team [1] to get all the features of a subset of Dell XPS13 laptops working under Linux. I'm actually considering buying one as…
Linus Torvalds, for one, used a Macbook Air with Linux up until a couple of years ago, which he praised as the right way to do laptops (he now uses a Chromebook IIRC).
(He also used a Mac Pro G5 in the mid-00s, again with Linux, and he wrote his autobiography around 2003-4 on an iBook with OS X).