Google's backup/restore works fine - it just need the app developer to actually use itI do that for whatever apps support it like Podcast Republic and Nova Launcher. As for Googles new 6.0 backup and restore it is still useless as usual. The only app that remembered my settings after the restore was Power Toggles which is good because there is no export backup settings and Greenify. Every other app I had to log in to and reconfigure again.

Power Toggles actually has an option to backup and restore widget settings - I use that if the widget disappears for some reason. The only one that I struggle with is Google Authenticator - no backup option. Have to rescan the QR codes if I ever had to restore it. I know Authy supports cloud backup - not comfortable handing over 2FA codes to a third party

On an unrelated note, 6.0.1 MMB29K factory images are out. Flashed it a short while ago. Nothing major that I saw (new emojis, and some tweaks to the do-not-disturb setting)