Thanks for reply.
That is exactly what I meant. Looked like they'd all sync'd. Message in corner said "All changes saved". Notes that had been used or opened had sync'd. More obscure less used notes were still "Download incomplete".
Even after multiple Ctrl-R re-syncs.
That said. It appears they are now ALL downloaded. So not sure if this was an original install setup thing where they were slow to download. (Slow like it took days to be complete)
Have also just received an app update to V10.45.18. This seems to be much snappier than prev v10.44. Or could just be because the database is now up to date & all downloaded.
(Early versions of the Android app only downloaded Headers/Snippet by default, not the full note. That was why I asked whether V10 did the same)