My Jolla hardly goes below 50% battery in one day.
On a typical work day in the office, I have it lying on the desk idle most of the time, but with browser, e-mail apps, securefishnet (OpenVPN connection) and often one or two more apps open, just checking from time to time, and making a few phonecalls (maybe 30min in total).
This is in an area with really bad mobile signal (I have to place my phone - any phone, not just the jolla - on the right spot on my desk to get any signal at all) but using work wifi.
I usually have around 70% battery left after 10-11hours.

Of course battery drains faster when I actively use the phone - browsing on "heavy" sites and watching videos makes battery drain visible.

But I can't complain about battery life at all.