Given this layout:

    h_tiles
    ├── window1 (focused)
    ├── window2
    └── window3

    h_tiles
    ├── window1 (focused)
    └── v_tiles
        ├── window2
        └── window3

Every time it wakes from boots, the desktop has complete amnesia with 3 screens.

Ideally I'd be able to drive my own workspaces, and it can use the laptop screen only, or 2 or 3 external monitors at different desks (work and home).

displayplacer "id:... res:2048x1330 hz:120 color_depth:8 enabled:true scaling:off origin:(0,0) degree:0" "id:... res:3840x2160 hz:30 color_depth:8 enabled:true scaling:off origin:(-918,-2160) degree:0"

displayplacer is very easy to set up and also gives you access to modes that you can't access with System Preferences.

The script detects the connected screen UUID and applies the appropriate layout

[1] http://www.hammerspoon.org/

It's a little baffling how MacOS hasn't been able to get this to work. If a Matrox TripleHead2Go could hit a high enough resolution for multiple monitors it might be a possibility.

It did improve with a few tweaks but every so often it forgets.

First I thought it was a Macbook Pro thing. But a Mac Studio, with 3 separate monitors plugged into it, was just as confused.

I'm not sure how Windows and Ubuntu can handle it just fine from my experience.

I did not even know it was possible to drag windows. I do that by selecting the window I want to split, then setting a "vertical" split with "Command + v", then creating the new window (usually a terminal).

Or I move the window with "Command + Shift + [hjkl]".

https://github.com/peterklijn/hammerspoon-shiftit