I switched to Macs quite a while ago, when many things usually didn't work out of the box with Linux. Wifi, bluetooth, hibernation, full disk encryption, GPU support, and external monitors were all things you would either spend a lot of time configuring or even compiling kernel modules from source.
The situation today is a lot better. I believe some research into Linux support is still a good idea before purchasing, say, a laptop.
The situation today is a lot better. I believe some research into Linux support is still a good idea before purchasing, say, a laptop.