I think some things are already available:

- moving windows around is done with Win+Arrow key

- if you want to bring a new terminal with a hotkey, you can just assign one in shortcut properties (that's a Windows feature). Once automation feature is implemented, that terminal will behave similarly (or better than i3).

- sounds like Ctrl + d is basically Win key on Windows, that brings up start menu with integrated search

- virtual screens are already available on Windows 10, and there are hotkeys

- maximizing a window already has a hotkey in Windows 10 as well - Win + Up. Currently, Stack overrides that hotkey though

- hjkl sounds possible, however, I'd like to avoid modes, so they'll have to be used with modifiers

I will see what I can do to make it possible to run similarly to i3.

I have always been wondering whether there are actually people preferring alt over super as mod. Now I know. :)

Not that many, I should think. Most applications don't make use of super, so it's a natural fit for WM bindings.

Doesn't macOS abuses its super key ? (cmd ?)

Every time I use a macbook I twist my fingers horribly to copy and paste.

It does. Remapping Command onto Caps Lock helps a lot with the hand cramps, and Control makes a pretty good super key since almost nothing uses it. Still a mess, but it's manageable if you know how.