* 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
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.
I'm using Hammerspoon to implement manual tiling and pretend to have old Spaces (spaces arranged in a grid with instant transitions), but it's not my favorite thing ever.
Also, FYI, you can split left and right on mac by hovering over full-screen button while holding the option key: https://imgur.com/a/VNSQR8l
It's not a hotkey, but it gets the job done.
I think each OS has the part they do right. Windows has the taskbar, Linux has the customization, Mac has spotlight and full screen spaces.
Many of us are forced to use a Mac at work btw.