Just because you brought it up, sleep hasn't just worked for me on MacOS. I use to have a problem where it wouldn't connect to an external monitor again after sleep. I currently have a problem where my external keyboard isn't recognized until I unplug it and plug it back in.

Didn't have that problem with another keyboard on the same MacBook, and I haven't had that problem with the same keyboard on a Windows machine.

I have mac, linux, and windows machines at home and in the words of Three Dead Trolls "every OS sucks"