I've installed the new update 2 days ago (july security patch (ERG2)) and still have the problem that my battery drains much quicker than with android Nougat. Since the update it doesn't display cell standby as the biggest user anymore, but it also doesn't display the right battery usage percentages anymore (in picture below, total usage is 100-74=26%, but when you add the different percentages per app it only amounts to 10%). I know there can be some difference because of the rounding of the percentages, but a difference of more than 2.5 times is a bit too much. So I think they didn't really solve the cell standby problem, but tweaked the battery usage somehow so it doesn't show cell standby as the biggest user.
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