That depends on interpretation of the sentence structure. It could mean “any visible [creatures and objects]” or “any [visible creatures] and objects”.
I’ve specifically focused on means that don’t require a spell slot to use. Left familiar as an exception because people like to have them anyway and it can be ritual cast.
Nope
Technically it only refers to visible creatures. Objects doesnt have the adjective visible.
Unlikely, but a particularly bull headed person could read this as though detect magic could identify invisible objects.
That depends on interpretation of the sentence structure. It could mean “any visible [creatures and objects]” or “any [visible creatures] and objects”.
I’m kinda surprised how vague many of the DnD rules are written.
Didn’t they have a rules lawyer at hand when writing these?
I’ve specifically focused on means that don’t require a spell slot to use. Left familiar as an exception because people like to have them anyway and it can be ritual cast.