They actually do have windows splits, it's just unfortunate that they force a workspace onto them.
If anything workspace is a power user feature. Many including myself rarely use it. I could not if I wanted to because it looks so stupid on an ultrawide monitor.
To me the fact that 2 basic things: window snap and window switch hot keys (dont tell me you can switch apps, then swicth windows, it's retarded), don't exist, and I need at least 2 other apps to make my computer bearable, is ridiculous.
It's luckly that the apps happen to be free no thanks to Apple.
* which I use almost exclusively as open/close new tabs in Safari and Finder with the top right and left corners of the trackpad respectively; plus three-finger-swipe left/right gestures to move between tabs
