A recent post prompted me to look at using notes much more than I currently do.
Before I commit a lot of time to this, I searched for issues that people had had with notes over the last few years and found a few threads complaining of (a) the loss of notes or formatting and (b) the inability to make local backups using export and import to a local file.
The issues were referring to Logos 4 and 5 and I wanted to know whether they are still current concerns. I realise that they automatically get synced to the cloud, but I don't consider that particularly safe - a future program bug might well corrupt my notes and then happily sync them to the cloud, leaving me with nothing.