i still use Jolla Phone 1 as my daily driver (purchased 4 pieces on the beginning and now using third piece with new 2100mAh battery) i still running SF OS 1.1.7.28 because i did not like the updated UI what come in v2
in compare to recent SF all main features (for me) works better on old system and i can count on that phone will do what i want for example: syncing/deleting/updating mails in imap folders, no buffer under-runs while listening streaming radio in car. these two important things are bugged in actual SF for ages and that is why i have Xperia 10, Xperia 10II and Xperia 10V for secondary simcards for sms auth, tests or so…
i do not need to have phone glued to my hand all the time, i do not using web or android (generally) on phone…
i just need in phone: calls, sms, xmpp, alarm, camera, workhours tracker, notes, shopping list, calendar, recorder, calculator, email, wifi analyzer, my weather station app,call recorder, terminal, rarely maps and few more…
for other apps or web … i have PC or iPads, iPhones, Xperias with actual SFOS…
in case i add jolla account and visit store then to remove update notification about new OS version i use this script:
pkill store-client
rm -f /home/nemo/.cache/store-client/os-info
rm -f /home/nemo/.local/share/system/privileged/Notifications/notifications.db
reboot