The ones I personally used are:
AutoCAD - has an Isolate Layer function, I'm not sure they have a default hotkey for that, I used F5 to hide, F6 to unhide.
3ds Max - Isolate Selection - Alt+Q (toggle)
SketchUp - Hide Rest of Model - I also mapped it to Alt+Q because it's not hotkeyed by default.
So I think it doesn't even has to have a default key, just an option to key it yourself if you need it 🙂.