New bugs in 7.0?

I've received 7.0 update on my nexus 5x (no beta or other), installed and done a reset, i've two bugs: evry time i remove the voice assistant (i don't use it) the microphone icon on lockscreen disappears like i wanted, if i shutdown device that will reset even if in settings there's no voice assistant, removing telephone icon and changing again with microphone, next bug is the real impossibility to sync chrome with desktop one, i get no bookmarks or other, tryed manual sync etc, nothing, any suggest?

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