Two weeks ago I upgraded a friend's MacBook Pro (from 2011) with Manjaro Linux. No dual-boot, but exclusively Linux. I am not sure how that will work with more recent Apple computers, but still it's fun to see one actually work without any hassles and boundaries. :-)
I've used Linux distros for 14 years come this Sept.
I did try Manjaro. It crashed within six months,I reinstalled it again,it crashed so badly I knew I'd have to reinstall it. I decided it was not worth the trouble.
I went back to Ubuntu MATE cause I can run it for five years and it won't crash.
Way back when ,after reinstalling XP 3 times,the video screwed up,making everything huge. I got a Linux distro and it showed me the problem was not the video card,it was Windows. Three days later,I installed the distro and never looked back.
I could go for a vanilla Arch install, but why go through a lot of trouble and tinkering, when Manjaro sort of loves a Mac. It was installed in twenty minutes (slower/older hardware!) and I had to install an extra part to the kernel, so the cooling-fan is actually regulated. That was noticeable from the get-go, which I like. After that I turned the machine into a lightweight audio studio. My friend is all Apple and uses proprietary software for his audio-business. But there's nothing open source doesn't have, hahaha. Ardour and LMMS were the base and some added plugins made it possible to use the add-ons he has on his main machine. :-)
Ubuntu Studio would have been easier, since everything is already in it considering the audio-software, but thing is: I'm not an Ubuntu-fan. It's a good distro and all, but Arch (where Manjaro is based on) is simply better, including the documentation of it (Arch wiki, anyone?). The installed theme made that old laptop looking exactly like it's running OSX, which was appreciated.
Anyway, we've come a long way before installing any Linux distro on a Mac was easy. Nowadays every flavour (Debian, Redhat, Ubuntu, Arch, et cetera) has workarounds to make it possible. On old Macs, okay, but that is just because nobody ever gave me a brandnew MacBook (or what's it called nowadays?) to upgrade it to Linux. ;-)