I used to be able to map the Ctrl, Windows, and Alt keys on my Microsoft keyboard to use with MacOS in the Keyboard Settings. As shown here:
9to5mac.com
But in the new System Settings, this seems to have been removed?

How-To: Remap Windows keyboards to match the Mac keyboard layout - 9to5Mac
Over the last few days I’ve been finding myself using a keyboard designed for Windows users on my Mac. The...
