Creating a group of lights and plugs

I note from this thread:

That you can create groups without any group type (which is required when creating a group helper via the UI).

I’m looking to try to create a group of lights and smart plugs, and simply want to know whether any of them has been turned on or not. Does generic ‘group’ still work ? Or is there now a better way ?

I thought binary sensor might work, but I cannot select the entities I need when that option is selected.

Should have looked a little longer… seems this might be the way forward now