I upgraded from LTS 22.04. Everything seems to run fine. I expect the quick settings in the upper right corner to look like this:
But on my system the icons look broken like this:
I tried this: I installed
apt install gnome-shell-extension-manager
then started it and installed "Quick Settings Tweaker" which has some interesting extra settings, but no luck there either.
Then I reset al dconf settings with
dconf reset -f /org/gnome/
but that didn't help either and it was no good idea! Everything was reset to default even language settings, screen resolution, etc.!
How do I fix this?

