While with a different app, I’ve been following a similar approach (base32-encoded timestamps with millisecond precision due to the need for automated generation on import),. However, I don’t include the ID in the title, but just in the note’s metadata (and as a suffix in the filename):
Yours would be even shorter and still sort in chronological order which may be useful to some (I prefer clean titles and sort by a dedicated “creation date” column instead).