How do I transfer a note with 6+ images from an iPhone to a Mac?
duplicate the note as many times needed.
erase photos in the duplicate notes so that there are 5 or less of them  pic 1 to 5 in the first note, pic 6 to 11 in the second - and so on ...
airdrop them to the computer - assemble the notes in one (or put in a folder) on the computer.