Just moved to a mac and I'm having the same experience you had. Never had issues with Windows or various Linux distros. Currently I have a pretty absurd Karabin

Just moved to a mac and I'm having the same experience you had. Never had issues with Windows or various Linux distros. Currently I have a pretty absurd Karabiner config to work around some of the issues but I still haven't ironed them all out. Home/End always worked for me on Windows and didn't work for me on mac until I did a ton of tweaking.