I always want to buy these types of apps (window management) but they rarely play nice with multiple monitors, especially if the monitors aren't all in the same orientation and/or if you want a smaller monitor to work differently.
I've been using phoenix [0] for many years now for my window management which uses some JS config/code I wrote. It took a little bit for me to pick the hotkeys I wanted and how things should resize/move/jump monitors but now it's muscle memory.
One of the cool features of Moom is the ability to trigger saved layouts when monitors are connected and disconnected.
If you go to the Layout⁽¹⁾ section of the docs, you can read about the "Apply automatically when switching to ..." option which lets you select "1 display", "2 displays", "3 displays", etc. as triggers for the layout.
The other option worth mentioning is "Adapt to display configuration changes", which scales saved layouts up and down as needed depending on what displays are connected.
I've been using phoenix [0] for many years now for my window management which uses some JS config/code I wrote. It took a little bit for me to pick the hotkeys I wanted and how things should resize/move/jump monitors but now it's muscle memory.
[0] https://github.com/kasper/phoenix