Hi all, I have same trouble with camera focus.
You can try next:
First, enable Developer Options. Go to Settings > About Phone and tap on Nothing OS at the top of the menu. Then tap the Build number multiple times until you see a pop-up that says, “You are now a developer.”
Next : go to Settings, choose Angle settings and find Camera in app list.
Change default driver Open gl to “angle”.
Accept new settings, after cammera app need to force quit and restart Camera app.