Names shown by two listing forms

The following is the complete content inventory of the supplied
desk-home archive. Use it to predict each listing without extraction.
A leading dot changes default name visibility; it does not transform
the stored content or grant and remove read permission.

Ordinary UTF-8 files, no live home data.
desk-home/note.txt: visible note (newline)
desk-home/.notes: private practice label (newline; not a secret)
Predicted ls desk-home: note.txt (hidden names omitted by default)
Predicted ls -a desk-home: ., .., .notes, note.txt (format may vary)
Root directory /: top of Linux path tree; not the root user.
Home /home/desk: fictional user directory; actual home varies.
/tmp: temporary storage; do not rely on permanent retention.
Question file: .notes; no encryption operation has occurred.
Does its leading dot make it encrypted or hidden from ordinary ls?