When the phone is not responding it is not necessary to remove the battery.
Just press the power button very long. Release the button if the screen comes on and the phone vibrates.
I have also a Fairphone 3+ with v1.0. The only issue I have is with the camera and reboot. But not always. No dealbreaker, but sometimes I have to reboot the phone when the camera is not working.
Yeah, it’s annoying to have such problems with v1.0 after v0.23 and v0.22 works so great for me.
We should have waited with the upgrade to v1.0. I hope they work on a new v1.0 release. As I remember v.23 had also two releases. I had both and no issues.
For your issue. Try this, if you haven’t. Run the phone in “Safe mode”. In this mode only preinstalled apps are available.
But in this mode the phone should be most stable.
To do this. Press the power button till the “Shutdown” “Restart” menu appears. Then press long the restart button till a message appears which explains what safe mode is. Press ok and it should reboot in safe mode.
I hope in safe mode the phone stops freezing. And then we know it’s maybe some app which makes the phone unstable. Which not means that /e/ os is working ok, because obviously you had no such issues with v0.23. But you can use it and we can wait for a second release.