I have no idea how we generally handle this issue in documentation and translation: always use generic "Ctrl+M" (whatever that gets translated to); use some mark-up to ensure (German etc.) translation will be "Strg+M" for non-Mac and "Ctrl+M" for Mac; use "Control+M" on Mac […]
I think the best course here is to revert to the previous state and
label the Mac Control key with its symbol, “⌃” (U+2303). I’ll do that.
Thank you for correcting my brainfart.
Adolfo