I had constant problems with duplicati and switched to kopia with backblaze and it has been problem free, so I would tread very carefully with it. The database would work for a while and then get into a state that required a reset and would not have permitted a successful backup to be restored.
The 21:9 aspect ratio on the modern Xperia has always felt like it adds size with very little benefit. Makes usage two handed very often. Such a shame they didn’t keep a 16:9 compact.