You don’t need to use the power button to power off, and you can do it with one finger.
Swipe from top to open Quick Settings, then swipe down again1 to extend the panel. The power menu is accessible by an icon at bottom right of the screen.
1 You can obtain the fully extended panel with one swipe, but using two fingers.
You can choose in the settings between switching off or starting Google Assistant via the power button.
Thank you so much for your help!
Check out bedtime mode for that. Or a do not disturb schedule. Modern problems, modern solutions.
I have looked all through settings and have managed to completely not find this facility!
As mentioned already in the first reply 
Thank you. I was being a little facetious perhaps! I realise lots of people never turn their phones off at all, and that is fair enough.
Thank you so much for this reply!
Thank you so much for your reply I missed it when I first saw email responses as it was nested under the first one.
Oh thank you so much. I too have struggled with this being disabled and googled endlessly trying to find a solution, everything’s so easy once you know. Problem solved, no more dropping phone
I’m so glad I’m not alone! It’s only easy when you know how to do it.
It isn’t a FairPhone 5 problem either. When my fp4 got the Android 13 update, I couldn’t turn it off either.
Going through a lot of setting options, I finally tracked the (new?) option to choose whether the power button would work as expected (long press, show turn-off options) or do something quite unexpected (I always deactivated Google’s assistant ASAP) and start turning my phone int James Bond style spy-hardware.
It was new, and highly surprising, behaviour introduced without a warning by merely accepting the almost forced A13 upgrade.
Thank you, Google. But not really ‘hey’
Very interesting, same problem for me. When I want to switch off I am bugged with Assist messages instead of powering off. Where is this option hidden to reset the power button to the original definition?
In FP5 Settings / System / Gestures hopefully same for FP4!
Found it, it also works on FP4.
Thanks for your fast reply.
I am sure it has been mentioned before, but here we go:
It’s simple, Less complicated than my trial and error quest.
System
→ gestures
→ hold on/off button
→ choose on/off menu ( instead of digital assistant, which was set by the A13 update)
When I do as you said:
There is no “Quick Settings”. I get Internet, Bluetooth, “Do not Disturb” & Wallet and then in a white window: “Upcoming alarm” + “Manage” & “Clear All”.
To permanently change the power button to turn it off without having to use the quick settings menu, you can re-assign it as yvmuell helpfully wrote in her post post, via Settings and Gestures. Unfortunately I didn’t see this when I marked OldRoutard’s excellent advice as the solution to this problem. What Old Routard wrote is excellent advice, but yvmuell’s post is the permanent solution to the problem I had.
Thank you very much. Indeed very easy, and… now clear to me.
