This is really weird. My old Xperia 10 III broke (the glass in several places) so I bought a second hand “new” one. After installing Sailfish and most of my usual apps and accounts, including Patchmanager but no patches yet - the power consumtion of the new device is less than half of my old!
My old phone is around -200 to -400 mA with no apps open.
My new phone is usually around -100 mA with several apps open.
This is with the same 4G connection and Wifi that I’ve always used before as well.
The only difference is that I think the new phone was on a newer Android when I flashed it.
Nice. But very strange. I hope Jolla will be able to find the cause of this soon.