Yeah I wish they had an option to change the battery icon to circle or an option to remove the icon altogether and just keep the percentage (like 90% without the battery icon). I do not like the new battery icon at all. It's way too big for no appare...
I wish hyperlink blocking worked on third party messaging apps. I personally love the Fossify Message app but I am forced to use Samsung Messages since it's the only SMS app that supports hyperlink blocking.
You mean the status bar battery icon? There is none. The only thing you can do is hiding the percentage number from inside the battery icon but you can't change the shape or size of the battery icon.
Whether the battery life will improve or not, that's another discussion but it's a good practice to reset the device after an Android version update to avoid weird glitches/bugs here and there arises due to the conflict of coding overlap.