Just read the thread from Reddit above about the export by drag and drop to Files app: I tried and it works! You can bulk export without Mac and third-party apps, but the format is .rtfd
Although it is still different from 1-click export, at least the export is not as difficult as expected.
I just found a note with pdf fully carried strange characters. Other notes look okay.
On the other hand, how can rtfd files be made use of? I remember on Mac you can extract all the attachments inside too.
The one downside I noticed is documents scanned into Notes cannot be exported this way. In fact, the only way I found to export them on Mac was as a PDF and that doesn’t export the entire image if it is too long.
BTW I just discovered that iOS 18 no longer displays a camera button in AN. You have to tap the Paperclip icon to see the camera, attach file, record audio, etc. options.
Apple really needs to provide a way to back up Apple Notes. I stopped using it, except for temporary notes, because there is no easy way to recover a note after 30 days.