Not all Google calendars and events are shown
I added two Google accounts (both with custom domains, Google Apps), both having plenty of shared calendars connected. In the calendar app I don't see all of these shared calendars, some are missing. From the shown calendars, from time to time, some particular event is missing. There is no pattern in this. Unlike other posts around, I have no problem with multiple day events. Removing and re-adding the Google accounts doesn't work.
I had been observing it on Intex Aqua Fish with all 2.X Sailfish OS versions and I have seen it after conversion to Jolla C and upgrade to 3.0.3.9, so in every Sailfish OS version on this device.