If you’re using a Windows keyboard on macOS, and that screenshot is from Rectangle (a macOS window manager).
Let’s translate those shortcuts to how they’ll actually feel on your Windows keyboard.

🧩 Mac Modifier → Windows Keyboard Mapping

macOS Key Windows Key Label
⌃ (Control) Ctrl
⌥ (Option) Alt
⌘ (Command) Windows key
⇧ (Shift) Shift

So if you see something like:
⌃⌥← → that means press Ctrl + Alt + Left Arrow on your Windows keyboard.

💡 Rectangle Shortcuts (Reimagined for Windows Keyboard)

Action macOS Shortcut Windows Keyboard Equivalent
Left Half ⌃⌥← Ctrl + Alt + Left Arrow
Right Half ⌃⌥→ Ctrl + Alt + Right Arrow
Top Half ⌃⌥↑ Ctrl + Alt + Up Arrow
Bottom Half ⌃⌥↓ Ctrl + Alt + Down Arrow
Top Left ⌃⌥U Ctrl + Alt + U
Top Right ⌃⌥I Ctrl + Alt + I
Bottom Left ⌃⌥J Ctrl + Alt + J
Bottom Right ⌃⌥K Ctrl + Alt + K
Maximise ⌃⌥↩ Ctrl + Alt + Enter
Maximise Height ⌃⌥⇧↑ Ctrl + Alt + Shift + Up Arrow
Make Smaller ⌃⌥- Ctrl + Alt + -
Make Larger ⌃⌥= Ctrl + Alt + =
Centre ⌃⌥C Ctrl + Alt + C
Restore ⌃⌥⌫ Ctrl + Alt + Backspace
Next Display ⌃⌥⌘→ Ctrl + Alt + Windows + Right Arrow
Previous Display ⌃⌥⌘← Ctrl + Alt + Windows + Left Arrow