Sorry but no, really no.
Windows:
- Has two ways of swapping between windows, taking up 2/3 of my modifier keys for use with Tab
- Loves to offset windows by one pixel and resize my taskbar
- Irrevocably moves things around if I disconnect a monitor
- Flashes taskbar icons constantly, like a particularly badly behaved terminal bell
and Mac:
- Leaves zombie processes in the cmd-tab list
- Is philosophically incompatible with any kind of fullscreen workflow.
Both have:
- Slow animations for basic windowing
- Only a few tiling options
- Minimal configurability...
- ...which doesn't matter anyway, because if someone at HQ gets bored, you're getting a UI interface redesign that's incompatible with your current workflow
- An approach to tab dragging that induces seizuring windows, because things are just too slow and fickle
- The ability for anything to steal my focus, mid-typing
But what's most damning of all is that both have a wealth of popular tools written and used by people trying to wrangle them into something useable.
There is nothing I could do to make them as fast to use as my tmux based workflow, simply because they do not work quickly enough for the keypresses I'm entering and don't even appear to be deterministic.