Does iTunes backup include notes in the All on My iPhone folder

I do all my notes on my iPhone in the All on My iPhone folder, not in the iCloud folder. I know that means they are not synced to the iCloud, and I don't want them to be. I know iCloud backup does NOT include Notes that are in the iCloud folder. I THINK that means that notes in the All on My iPhone folder ARE included in the iCloud backup, but I can't find confirmation of that anywhere.

SO I do a backup using iTunes on my laptop. iTunes says it does not backup notes that are synced to iCloud. But I can't find a way to verify that iTunes DOES back up notes that are in the All on My iPhone folder (and therefore are not synced to iCloud). So I'm still not confident that my notes are backed up anywhere!!