For me, none of these issues bar the battery icon cosmetic (which they updated and enlarged to an acceptable size IMO) have been an issue. No camera blurriness experienced, no battery drain (outside of typical drain) either. No "white mode" when swiping in dark mode etc. So it's hard to say if they "fixed" any of these issues if someone never experienced them in the first place. It's best to give some practical problems you may be experiencing with relevant context and data, such as screen shots of battery usage stats and other screens, captured photos with reference to prior photo's pre update. Usually anecdotal complaints with nothing to reference them to are much harder to diagnose or verify their authenticity.
